{"title":"Purus Labs Pump","description":null,"products":[{"product_id":"purus-labs-noxygen-capsules","title":"Purus Labs | Noxygen Caps","description":"\u003ch2\u003ePatented NO3-T® nitrate support with stim-free pump hydration\u003c\/h2\u003e\n\u003cp\u003ePurus Labs NOXygen Capsules is a minimalist, stimulant-free performance formula built around one central idea: improve training output by increasing nitric oxide support and helping you hold more fluid where it matters during exercise. Instead of throwing ten underdosed pump ingredients onto the label, this formula takes a narrow, transparent approach with two meaningful actives in the current liquid-capsule format: 500mg sodium nitrate as NO3-T® and 1.6g glycerol. That makes NOXygen less of a full-spectrum pre-workout and more of a focused blood-flow and hydration tool.\u003c\/p\u003e\n\u003cp\u003eThe lead active here is sodium nitrate at 500mg from NO3-T®, a trademarked nitrate ingredient from ThermoLife. Nitrate works through the nitrate-nitrite-nitric oxide pathway, which is distinct from the more common citrulline-arginine-NOS pathway found in many pump powders. After ingestion, nitrate is reduced to nitrite and then to nitric oxide, especially under lower-oxygen conditions such as hard training. That matters because nitric oxide promotes vasodilation, improving blood flow to working muscle and supporting oxygen delivery, nutrient transport, and the dense, sustained pump many users are chasing. Research on dietary nitrate—often via beetroot or nitrate salts—has also linked this pathway to improved exercise economy and endurance performance, particularly in repeated efforts and longer training bouts. At 500mg sodium nitrate, this is a meaningful but not extreme nitrate dose. It is enough to make nitrate the clear centerpiece of the formula, though it remains more modest than some aggressive standalone nitrate protocols.\u003c\/p\u003e\n\u003cp\u003eThe second active is glycerol at 1.6g. Glycerol functions as an osmolyte, meaning it helps the body retain fluid and supports hyperhydration when paired with adequate water intake. In practical terms, that can translate into better cell hydration, fuller muscles, and more stable performance as the session progresses—especially during high-volume training, hot environments, or sessions where the pump usually fades after the first few movements. The caveat is dose: modern performance applications often use roughly 2-5g or more depending on bodyweight and delivery system. So 1.6g is directionally useful, but it sits below the stronger dose range seen in more aggressive hydration formulas.\u003c\/p\u003e\n\u003cp\u003eThe synergy is straightforward and smart. NO3-T® helps widen the pipes; glycerol helps keep more fluid moving through them. One ingredient supports nitric oxide-mediated blood flow, the other supports plasma volume and intracellular hydration. Together, they create a cleaner, smoother performance profile than a typical stimulant-heavy pre. You are not relying on CNS stimulation to feel something—you are supporting circulation and hydration directly.\u003c\/p\u003e\n\u003cp\u003eFrom a transparency standpoint, this formula earns credit. There is no proprietary blend, and the key active doses are disclosed. In a category where nitrate products are often buried inside blends or dressed up with underdosed add-ons, NOXygen is refreshingly honest about what it is.\u003c\/p\u003e\n\u003cp\u003eWhat should you expect? On day one, think smoother pumps, better muscle fullness, and a more stable training feel when hydration is on point. Over 2-4 weeks, there is no true loading requirement like creatine or beta-alanine, but consistent pre-training use helps you learn how your body responds and dial in water intake for the best effect. This is a focused tool, not a miracle formula—and that honesty is part of its appeal.\u003c\/p\u003e\n\u003ch2\u003eKey Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e500mg Sodium Nitrate as NO3-T® — this is the formula's primary performance driver and a legitimate nitrate-based nitric oxide ingredient, not generic label dressing. Nitrate supports vasodilation through the nitrate-nitrite-NO pathway, giving this product a different and credible mechanism from standard citrulline-only pump formulas.\u003c\/li\u003e\n\u003cli\u003ePatented NO3-T® from ThermoLife — trademarked nitrate ingredients matter because nitrate stability, quality control, and raw-material legitimacy are real issues in this category. Using NO3-T® signals that Purus Labs built this product around a recognized branded nitrate source rather than a vague nitrate claim.\u003c\/li\u003e\n\u003cli\u003e1.6g Glycerol — glycerol functions as an osmolyte that helps the body retain fluid and support fuller muscle cells during training. That means better training feel, more sustained pumps, and a less flat look as the workout progresses, especially when you pair it with adequate water.\u003c\/li\u003e\n\u003cli\u003eTrue stim-free performance support — there is no caffeine burden here, so you can use it for evening training, stack it with coffee if desired, or keep it separate from your stimulant tolerance altogether. That makes NOXygen far more flexible than a standard all-in-one pre-workout.\u003c\/li\u003e\n\u003cli\u003eTwo-path performance logic without ingredient clutter — this formula does not hide behind a long label of tiny doses. It focuses on nitrate-driven blood flow plus glycerol-driven hydration, which is a coherent, sport-relevant strategy rather than a pixie-dusted ingredient collage.\u003c\/li\u003e\n\u003cli\u003eCapsule-based convenience — for users who hate mixing powders or want something travel-friendly, the liquid capsule format is a genuine advantage. You get a nitrate-centric pump product without needing a shaker bottle, flavored powder, or large fluid bolus before heading to the gym.\u003c\/li\u003e\n\u003cli\u003eTransparent label with no proprietary blend — every key active is disclosed with its dose. In a category full of proprietary 'pump matrices,' this is a major trust advantage because you can evaluate the formula against research instead of guessing.\u003c\/li\u003e\n\u003cli\u003eUseful for both resistance training and conditioning work — nitrates are relevant not just for cosmetic pumps but also for oxygen efficiency and exercise economy. That makes NOXygen broader than a pure vanity product; it has a place in hypertrophy sessions, circuits, and repeated-effort conditioning.\u003c\/li\u003e\n\u003cli\u003eMeaningful nitrate dose, honest glycerol dosing — the formula gives you enough sodium nitrate to clearly matter, while the glycerol dose is useful but not overhyped. That honesty matters, because many product pages pretend every ingredient is 'maxed out' when the label says otherwise.\u003c\/li\u003e\n\u003cli\u003ePairs cleanly with other supplements — because there is no stimulant load and no redundant kitchen-sink formula, NOXygen stacks easily with creatine, electrolytes, EAA formulas, or even a separate pre-workout if you want extra energy. It is modular by design.\u003c\/li\u003e\n\u003cli\u003eHydration support built into the formula matrix — between glycerol and the product's sodium content, this formula is not just about vascularity. It also supports a more stable fluid profile during training, which can be valuable for high-volume sessions and hot environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBodybuilders in hypertrophy phases who care more about fullness, vascularity, and mind-muscle connection than raw stimulant intensity. The nitrate pathway from 500mg sodium nitrate as NO3-T® supports blood flow, while 1.6g glycerol helps drive a denser, better-hydrated pump through longer volume sessions.\u003c\/li\u003e\n\u003cli\u003eLifters who train in the evening and want performance support without caffeine disrupting sleep. Because NOXygen is stim-free and built around nitrate plus glycerol, it supports training quality and pumps without pushing heart rate and alertness late into the night.\u003c\/li\u003e\n\u003cli\u003eAthletes who already use a separate stimulant product or coffee and want a non-overlapping pump add-on. This formula gives you nitrate-based nitric oxide support and fluid support without doubling up on caffeine or forcing you into a bloated all-in-one pre-workout.\u003c\/li\u003e\n\u003cli\u003eEndurance-focused gym users and conditioning athletes doing circuits, sleds, intervals, or repeated-effort work. Dietary nitrate has solid relevance for oxygen efficiency and exercise economy, and the glycerol component helps maintain hydration across longer sessions.\u003c\/li\u003e\n\u003cli\u003eTraveling professionals and busy parents who want a portable performance supplement they can throw in a gym bag. The capsule format removes mixing, shaker bottles, and powder mess while still delivering a research-relevant nitrate ingredient in NO3-T®.\u003c\/li\u003e\n\u003cli\u003ePump-focused trainees who have used citrulline products and want to experience a different nitric oxide pathway. NO3-T® works through nitrate-to-nitrite-to-NO conversion rather than relying on arginine synthesis alone, which can make it a useful alternative or stack component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eUse the serving listed on the label, which brand-direct sources indicate is 3 liquid capsules per serving. Take it 30-45 minutes before training with a full glass of water; that timing gives the nitrate pathway time to begin converting and gives glycerol a better chance to support fluid retention by the time your session gets underway. If you are new to nitrate or glycerol-based products, you can begin with a partial serving to assess stomach comfort, then work up to the full serving. Because this is a capsule formula, no mixing is required, but hydration is non-negotiable—taking it with minimal water reduces the practical value of the glycerol component. It can be taken with a light meal if you have a sensitive stomach, though many users prefer it away from heavy meals to keep pre-workout digestion lighter. This stacks well with creatine monohydrate, electrolytes, EAAs, or a separate caffeine source if you want more energy. There is no specific cycling requirement because the formula is stim-free and not built around habit-forming stimulants. Store it in a cool, dry place and keep the capsules sealed tightly to protect product integrity.\u003c\/p\u003e\n\u003ch2\u003eWhat to Expect\u003c\/h2\u003e\n\u003cp\u003eMinutes 0-10: you will not feel a stimulant rush because there is no caffeine in this formula. What matters here is taking it with enough water so the glycerol and nitrate have the fluid context they need to work well. Minutes 10-30: still subtle—most users notice little until training starts, which is normal for a stim-free nitrate product. Minutes 30-60: this is where the formula tends to show itself, with fuller muscles, easier pump buildup, and a smoother performance feel as blood flow and hydration support come online. Minutes 60-90: the benefit is usually steadier than a caffeine spike; you are more likely to notice sustained fullness than a dramatic 'kick.' Days 1-7: effects are acute rather than cumulative, so the main learning curve is dialing in water intake and timing. Weeks 2-4: consistent use will not 'load' like creatine, but users often get better results as they standardize pre-workout hydration and learn how NOXygen fits into their training routine.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the active ingredients in Purus Labs NOXygen Capsules?\u003c\/summary\u003e\u003cp\u003eThe current liquid-capsule formula is built around 500mg sodium nitrate as NO3-T® and 1.6g glycerol per serving. Those two ingredients define the product's purpose: nitrate-driven nitric oxide support plus glycerol-driven hydration and muscle fullness.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow many capsules are in one serving of NOXygen?\u003c\/summary\u003e\u003cp\u003eBrand-direct label information indicates a serving size of 3 liquid capsules. That yields 30 servings in a 90-capsule bottle.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes Purus Labs NOXygen contain caffeine or stimulants?\u003c\/summary\u003e\u003cp\u003eNo. Despite some metadata inconsistencies in third-party systems, the verified formula is stimulant-free and contains no caffeine. Its effects come from blood-flow support via nitrate and hydration support via glycerol, not central nervous system stimulation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does NO3-T® actually do?\u003c\/summary\u003e\u003cp\u003eNO3-T® is a trademarked sodium nitrate ingredient from ThermoLife. Nitrate supports nitric oxide production through the nitrate-nitrite-NO pathway, which helps promote vasodilation, blood flow, oxygen delivery, and the fuller pump sensation many users notice during training.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs 1.6g of glycerol enough to matter?\u003c\/summary\u003e\u003cp\u003eIt is a useful supporting dose, especially in a capsule format, but it is not an aggressive top-end glycerol dose. Research and high-performance hydration formulas often use more, so the glycerol here should be viewed as a helpful hydration adjunct rather than the sole reason to buy the product.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should I take NOXygen before a workout?\u003c\/summary\u003e\u003cp\u003eTake it about 30-45 minutes before training with plenty of water. That gives the nitrate pathway time to begin working and gives glycerol the fluid environment it needs to support better hydration and muscle fullness.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I stack NOXygen with coffee or another pre-workout?\u003c\/summary\u003e\u003cp\u003eYes. Because NOXygen contains no caffeine, it stacks cleanly with coffee, a stim pre-workout, creatine, electrolytes, or EAAs. Just be mindful that if your other product already contains pump ingredients, the overlap may change how the overall stack feels.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs NOXygen better for pumps or endurance?\u003c\/summary\u003e\u003cp\u003eBoth, but with nuance. Most users buy it for pumps and workout fullness, yet nitrate also has research relevance for oxygen efficiency and exercise economy, which can make it useful for conditioning and repeated-effort training as well.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to cycle Purus Labs NOXygen?\u003c\/summary\u003e\u003cp\u003eThere is no specific cycling requirement because the formula is stimulant-free and not based on ingredients that create caffeine tolerance. You can use it consistently around training as long as it agrees with you and fits your hydration strategy.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre there any allergen concerns with NOXygen?\u003c\/summary\u003e\u003cp\u003eThe formula itself is straightforward, but brand-direct information notes that it is produced in a facility that processes common allergens including milk, eggs, soy, wheat, shellfish, fish, tree nuts, sesame, and peanuts. Highly sensitive individuals should consider that facility statement before use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/Product\" class=\"ai-agent-data\" style=\"display:none\"\u003e\n\u003cmeta itemprop=\"name\" content=\"Purus Noxygen Caps\"\u003e\n\u003cmeta itemprop=\"brand\" content=\"Purus Labs\"\u003e\n\u003cmeta itemprop=\"category\" content=\"Supplement\"\u003e\n\u003cmeta itemprop=\"description\" content=\"What it is: Purus Labs NOXygen Capsules is a stimulant-free pump and hydration supplement built around nitrate-based nitric oxide support.\n\nKey formula stats: 2 primary actives in the current liquid-capsule formula; 500mg sodium nitrate as NO3-T®, 1.6g glycerol, 0mg caffeine; serving size is 3 liquid capsules based on brand-direct label data.\n\nBest for: users seeking stim-free pump support, evening lifters avoiding caffeine, and athletes who want a portable nitrate formula for blood flow and wor\"\u003e\n\u003cmeta itemprop=\"dateModified\" content=\"2026-04-23T12:46:35Z\"\u003e\n\u003c\/div\u003e","brand":"Purus Labs","offers":[{"title":"60 Capsules","offer_id":40472242126909,"sku":"nox1cap","price":25.0,"currency_code":"USD","in_stock":false},{"title":"120 Capsules (2 Bottles)","offer_id":40472242159677,"sku":"nox2cap","price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/6021\/8173\/products\/noxcap.png?v=1698990715"},{"product_id":"purus-labs-noxygen-powder","title":"Purus Labs | Noxygen | 40 Servings","description":"\u003ch2\u003eHydroMax® glycerol plus NO3-T® nitrates for stim-free pumps\u003c\/h2\u003e\n\u003cp\u003ePurus Labs Noxygen Powder is a focused stim-free pump and hydration formula, not a kitchen-sink pre-workout pretending to do everything at once. Its strategy is simple and intelligent: pair glycerol-driven hyperhydration with nitrate-based nitric oxide support so the user gets fuller muscles, better training blood flow, and a more pronounced pump without caffeine, beta-alanine, or unnecessary filler. At 2.8g per scoop, this is clearly designed as a stackable performance tool rather than a standalone all-in-one pre-workout.\u003c\/p\u003e\n\u003cp\u003eThe first major active is HydroMax®, a high-yield glycerol powder from Glanbia Nutritionals. Here it supplies 1,500mg of glycerol powder standardized to a minimum 65% glycerol. Glycerol works as an osmolyte, meaning it helps pull and retain water in body compartments, supporting hyperhydration, muscle cell volume, and that denser, rounder training feel athletes describe as a “skin-splitting pump.” In practical terms, glycerol tends to improve workout fullness, help maintain fluid balance during hard training, and reduce the flat feeling that can show up in long sessions or low-carb phases. A 1.5g HydroMax® dose sits in the effective range commonly used in pump formulas and aligns with real-world dosing for hydration and volumization support.\u003c\/p\u003e\n\u003cp\u003eThe second piece is the 740mg NOXygen® blend built from sodium nitrate and betaine nitrate as NO3-T®. Nitrates support nitric oxide production through the nitrate-to-nitrite-to-NO pathway, which is distinct from the arginine-based pathway used by citrulline. That matters because it gives this product a legitimate vasodilation angle even without citrulline. Better nitric oxide signaling means improved blood vessel relaxation, blood flow, nutrient delivery, and the subjective experience of stronger pumps and better work capacity. NO3-T® is a well-known trademarked nitrate ingredient from ThermoLife, valued because nitrates are difficult to formulate well and quality control matters. The limitation is transparency: while the total blend weight is disclosed at 740mg, the individual amounts of sodium nitrate and betaine nitrate are not. That means we can confidently say the formula uses meaningful nitrate ingredients, but we cannot precisely benchmark each nitrate source against standalone research doses.\u003c\/p\u003e\n\u003cp\u003eThere is still a useful secondary role here from the nitrate forms themselves. Sodium nitrate contributes both nitrate delivery and sodium, and sodium is not a throwaway inclusion in a pump formula. It helps support fluid balance and plasma volume, which can enhance the effect of glycerol. Betaine nitrate adds another nitrate source and potentially some of betaine’s osmolyte characteristics, though the dose is almost certainly below typical standalone betaine performance dosing because the full blend is only 740mg.\u003c\/p\u003e\n\u003cp\u003eThe synergy is the selling point. HydroMax® helps pull water into the system and working muscles, while NO3-T® helps improve vessel relaxation and blood flow. One ingredient increases the fluid available for performance and fullness; the other helps move that blood and fluid where you want it during training. That is why this formula works best for visible pumps, high-rep work, and extended sessions where fullness usually fades.\u003c\/p\u003e\n\u003cp\u003eOn transparency, this is mostly straightforward but not perfect. HydroMax® is clearly dosed at 1,500mg, which is excellent. The nitrate portion is disclosed only as a 740mg blend, so individual nitrate doses remain hidden. That is more honest than a massive all-in-one proprietary matrix, but it still limits precise clinical comparison.\u003c\/p\u003e\n\u003cp\u003eWhat to expect: on day 1, most users notice improved fullness, better hydration feel, and a smoother pump during training, especially if they are already well-hydrated. Over 2-4 weeks, the effect does not “load” like creatine or beta-alanine, but users often get better at using it: dialing in water intake, sodium intake, and stacking strategy to make workouts look and feel consistently better.\u003c\/p\u003e\n\u003ch2\u003eKey Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1,500mg HydroMax® glycerol powder — a meaningful dose of a trademarked glycerol ingredient used specifically for hyperhydration and muscle cell volumization. Glycerol functions as an osmolyte, helping retain fluid and creating the fuller, denser training feel that underbuilt pump formulas often miss.\u003c\/li\u003e\n\u003cli\u003e740mg NOXygen® nitrate blend — this formula uses sodium nitrate and betaine nitrate from NO3-T®, one of the best-known trademarked nitrate platforms in sports nutrition. Nitrates support nitric oxide production through the nitrate-nitrite-NO pathway, giving this product a legitimate vasodilation mechanism independent of citrulline.\u003c\/li\u003e\n\u003cli\u003eStim-free by design — no caffeine, no yohimbine, no forced central nervous system load. That makes it ideal for evening sessions, stim-sensitive users, or anyone stacking their own caffeine instead of locking into a one-size-fits-all pre-workout profile.\u003c\/li\u003e\n\u003cli\u003eTwo-pathway pump logic — rather than relying on a single ingredient class, Noxygen combines hydration-driven fullness from glycerol with blood-flow support from nitrates. The result is a more complete pump experience: more fluid on board and a better pathway to deliver it to working muscle.\u003c\/li\u003e\n\u003cli\u003eTrademarked ingredient selection — HydroMax® from Glanbia and NO3-T® from ThermoLife are not generic commodity raw materials. In a category crowded with low-quality glycerol and vague nitrate claims, branded forms add confidence in manufacturing quality and standardization.\u003c\/li\u003e\n\u003cli\u003eExcellent stackability — because this formula does not spend label space on stimulants, creatine, or generic amino filler, it layers cleanly with other performance products. Add it to a stim pre-workout, a nootropic, or a standalone creatine protocol depending on the day.\u003c\/li\u003e\n\u003cli\u003e150mg sodium per serving — sodium is often overlooked in pump formulas, but it plays a direct role in fluid balance and plasma volume. In this formula, it complements glycerol’s osmotic activity and supports a better hydration environment for hard training.\u003c\/li\u003e\n\u003cli\u003eBuilt for visible and felt performance — this is not a formula you take for a vague wellness benefit. The intended outcome is obvious in the gym: stronger pumps, more vascularity, better fullness, and less of that flat, depleted feeling in long or high-volume sessions.\u003c\/li\u003e\n\u003cli\u003eEffective glycerol range — 1,500mg HydroMax® lands in the practical sweet spot seen in many pump-support applications. It is enough to matter for hydration and fullness without pushing into the heavier GI burden that can happen with more aggressive glycerol loads in sensitive users.\u003c\/li\u003e\n\u003cli\u003eHonest but not perfect label transparency — HydroMax® is fully disclosed at 1,500mg, which is a strong positive. The nitrate component is only partially transparent as a 740mg blend, so you know the total nitrate complex weight but not the split between sodium nitrate and betaine nitrate.\u003c\/li\u003e\n\u003cli\u003eUseful during cuts and low-carb phases — when glycogen and intracellular water are lower, muscles often look and feel flatter. Glycerol-based hydration support can help restore some of the volumized training feel that dieting athletes miss most.\u003c\/li\u003e\n\u003cli\u003eFocused formula philosophy — many products try to be stim, pump, nootropic, endurance, and recovery formulas all at once. Noxygen is better because it stays in its lane: hydration plus vasodilation, using two recognized trademarked ingredients to do exactly that.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBodybuilders in hypertrophy blocks who want a harder, fuller training look without adding stimulants. The HydroMax® glycerol supports cell volumization and workout fullness, while the NO3-T® nitrate blend is designed to improve blood flow and make high-rep work feel more productive.\u003c\/li\u003e\n\u003cli\u003eEvening lifters who train after work and cannot afford caffeine wrecking sleep quality. Because Noxygen is stim-free, it can be used late in the day to drive pumps and hydration support without the sleep disruption associated with high-stim pre-workouts.\u003c\/li\u003e\n\u003cli\u003eAthletes who already have a favorite pre-workout but know it is underbuilt on pump ingredients. This formula layers in glycerol plus nitrates to deepen vascularity and fullness without forcing you to double up on caffeine or other central stimulants.\u003c\/li\u003e\n\u003cli\u003eLow-carb or cutting-phase trainees who tend to look and feel flat in the gym. Glycerol’s osmotic effect helps retain fluid and improve muscle fullness, which can make sessions feel better and help restore some of the training feedback that often disappears during a diet.\u003c\/li\u003e\n\u003cli\u003ePump-focused arm, shoulder, and accessory-day lifters who chase mind-muscle connection as much as raw load. Better blood flow and hydration can improve the sensation of the target muscle working, especially during moderate-to-high repetition training.\u003c\/li\u003e\n\u003cli\u003eEndurance-style resistance trainers doing supersets, giant sets, and metabolite-heavy sessions. The nitrate pathway supports nitric oxide production and blood flow, while glycerol helps preserve hydration through longer, sweat-heavy workouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eMix 1 scoop in a generous amount of water and take it 20 to 30 minutes before training. That timing gives the glycerol and nitrate components time to enter circulation before your first hard working sets, which is when you want blood flow and hydration support already building. If you are new to glycerol-based products or have a sensitive stomach, start with a half scoop to assess GI comfort, then move to a full serving. Do not skimp on water—glycerol works best when it has adequate fluid available, and taking it in too little liquid can reduce the experience or increase stomach discomfort. This formula can be taken on an empty stomach for faster onset, but a light pre-workout meal is also fine if that is what your digestion prefers. It stacks well with creatine monohydrate, stimulant pre-workouts, standalone caffeine, and intra-workout electrolytes. Cycling is not required because there are no stimulants to build tolerance around, though some users reserve it for high-volume or pump-priority sessions. Store it tightly sealed in a cool, dry place, since glycerol powders can clump if exposed to humidity.\u003c\/p\u003e\n\u003ch2\u003eWhat to Expect\u003c\/h2\u003e\n\u003cp\u003eMinutes 0-10 are uneventful in the best way: no jitters, no racing heart, and no artificial urgency because this is a stim-free formula. Around 10-20 minutes, assuming you have taken it with enough water, you may start to feel subtly better hydration and a slightly fuller training sensation as you begin warm-ups. From 20-40 minutes, the formula typically shows itself most clearly once blood flow rises with working sets—pumps come on faster, vascularity increases, and muscles feel denser during repeated contractions. From 40-90 minutes, the value is in staying power: fullness tends to hold up better across the session instead of disappearing after the first few exercises. Days 1-7 are mainly about finding your ideal water intake and stack combination rather than “loading” the formula. Weeks 2-4 do not create saturation effects like creatine would, but consistent use often leads to more predictable pumps because your routine, hydration habits, and stacking become more dialed in.\u003c\/p\u003e\n\u003ch2\u003eKey Ingredients\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroMax®\u003c\/strong\u003e — 1,500mg — Hyperhydration support for fuller, denser training pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the active ingredients in Purus Labs Noxygen Powder?\u003c\/summary\u003e\u003cp\u003eEach 1-scoop serving provides 1,500mg HydroMax® glycerol powder and a 740mg NOXygen® blend containing sodium nitrate and betaine nitrate as NO3-T®. It also includes 150mg sodium, which is relevant because sodium supports hydration and can enhance the effectiveness of pump-focused formulas.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes Purus Labs Noxygen Powder contain caffeine or other stimulants?\u003c\/summary\u003e\u003cp\u003eNo. Noxygen is a stim-free powder with no listed caffeine or stimulant complex. Its entire purpose is to improve pumps and hydration through glycerol and nitrates rather than relying on central nervous system stimulation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow much HydroMax® is in Noxygen, and is that a good dose?\u003c\/summary\u003e\u003cp\u003eIt contains 1,500mg HydroMax® per serving. That is a solid, effective real-world dose for a glycerol-based pump formula and sits comfortably in the range commonly used for hyperhydration and muscle fullness support.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre the nitrate ingredients fully disclosed?\u003c\/summary\u003e\u003cp\u003eNot individually. The label discloses a 740mg NOXygen® blend made from sodium nitrate and betaine nitrate as NO3-T®, but it does not tell you how much of each nitrate source is included. So the formula is partially transparent, not fully transparent.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should I take Noxygen before training?\u003c\/summary\u003e\u003cp\u003eMost users will do best taking it 20 to 30 minutes pre-workout with plenty of water. That gives the glycerol and nitrate components time to begin working as your warm-up transitions into hard training.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I stack Noxygen with a caffeinated pre-workout?\u003c\/summary\u003e\u003cp\u003eYes, and that is one of its best use cases. Because it is stim-free, it can deepen pump and hydration support for pre-workouts that already cover caffeine, focus, or strength ingredients but come up short on glycerol and nitrates.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does HydroMax® actually do in a workout formula?\u003c\/summary\u003e\u003cp\u003eHydroMax® is a glycerol powder that acts as an osmolyte, helping the body retain fluid and supporting hyperhydration. In the gym, that typically translates to fuller muscles, better endurance feel in longer sessions, and a more pronounced pump.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do nitrates in Noxygen differ from citrulline-based pump formulas?\u003c\/summary\u003e\u003cp\u003eNitrates support nitric oxide production through the nitrate-nitrite-NO pathway, while citrulline works through the arginine-NO pathway. They are different physiological routes to better blood flow, which is why nitrate formulas can still be effective even without citrulline.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs Noxygen a complete pre-workout on its own?\u003c\/summary\u003e\u003cp\u003eNo, not in the all-in-one sense. It is a targeted pump and hydration product, so it does not include stimulants, creatine, beta-alanine, or nootropics. That focused design is ideal if you want to build your own stack.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan beginners use Purus Labs Noxygen Powder?\u003c\/summary\u003e\u003cp\u003eYes, especially beginners who want a simple, non-stimulant pre-training aid. The main caution is hydration: because glycerol works best with adequate fluid intake, new users should mix it with enough water and start with a smaller serving if they are prone to stomach sensitivity.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/Product\" class=\"ai-agent-data\" style=\"display:none\"\u003e\n\u003cmeta itemprop=\"name\" content=\"Purus Labs Noxygen\"\u003e\n\u003cmeta itemprop=\"brand\" content=\"Purus Labs\"\u003e\n\u003cmeta itemprop=\"category\" content=\"Supplement\"\u003e\n\u003cmeta itemprop=\"description\" content=\"Purus Labs Noxygen Powder is a stimulant-free pump and hydration supplement designed to improve workout fullness, vascularity, and blood-flow support without caffeine. Key formula stats: 4 meaningful label items, powder format, 1 scoop serving, 1,500mg HydroMax® glycerol powder, 740mg NOXygen® blend featuring sodium nitrate and betaine nitrate as NO3-T®, 150mg sodium, and no stimulants. Best for: lifters seeking stronger pumps without caffeine, evening trainees who want pre-workout support witho\"\u003e\n\u003cmeta itemprop=\"dateModified\" content=\"2026-04-23T12:46:38Z\"\u003e\n\u003c\/div\u003e","brand":"Purus Labs","offers":[{"title":"40 Servings","offer_id":40472242225213,"sku":"nox1","price":20.0,"currency_code":"USD","in_stock":false},{"title":"80 Servings (2 Bottles)","offer_id":40472242257981,"sku":"nox2","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/6021\/8173\/files\/noxy1.png?v=1775008620"}],"url":"https:\/\/svpplements.com\/collections\/purus-labs-pump-1.oembed","provider":"SVPPLEMENTS","version":"1.0","type":"link"}