{"title":"ASL Fat Burners","description":null,"products":[{"product_id":"asl-yellow-demons","title":"ASL | Yellow Demons","description":"\u003ch2\u003eHigh-stim thermogenic capsules with yohimbine, rauwolscine, and caffeine\u003c\/h2\u003e\n\u003cp\u003eASL Yellow Demons is a classic high-stim thermogenic capsule built around one core objective: make a calorie deficit feel more manageable by increasing energy, sharpening focus, and pushing appetite suppression through a concentrated stimulant blend. This is not a pump formula, hydration formula, or daily wellness product. It is a fat-loss support formula that leans on central nervous system stimulation and adrenergic signaling. The structure of the formula makes that clear: B vitamins up front, followed by a 515mg proprietary blend containing caffeine anhydrous, black tea extract, PEA HCl, yohimbine HCl, rauwolscine, and peppermint.\u003c\/p\u003e\n\u003cp\u003eThe B-vitamin panel is supportive rather than transformative, but still relevant. Vitamin B6 at 5mg, folic acid at 400mcg, and vitamin B12 at 100mcg are included to support normal energy metabolism and neurotransmitter processes. These do not create the acute “kick” users feel from the product, but they make sense in a stimulant-oriented formula where catecholamine turnover and metabolic demand are elevated.\u003c\/p\u003e\n\u003cp\u003eCaffeine anhydrous is almost certainly the backbone of the experience. As a rapidly absorbed adenosine receptor antagonist, caffeine reduces perceived fatigue, increases alertness, and improves willingness to train or move when calories are low. The issue is that the exact dose is not disclosed. That matters. In fat burners, caffeine can be meaningfully effective across a broad range, but the user experience changes dramatically depending on whether the formula contains a moderate dose or a very high one. Because Yellow Demons is positioned as a high-stim thermogenic and also includes yohimbine HCl plus rauwolscine, the practical stimulant burden is likely stronger than caffeine alone would suggest.\u003c\/p\u003e\n\u003cp\u003eBlack tea extract adds a second stimulant and thermogenic vector. Depending on standardization, black tea can contribute additional naturally occurring caffeine and tea polyphenols, extending the energetic feel of the formula beyond a single-source stimulant hit. In a blend like this, black tea likely functions as supporting stimulation and thermogenic reinforcement rather than the primary driver.\u003c\/p\u003e\n\u003cp\u003ePEA HCl, or phenethylamine hydrochloride, is typically used for fast, noticeable mood elevation and a more urgent sense of drive. On paper, PEA supports catecholaminergic tone and can create the “euphoric” edge many high-stim users chase. In practice, its effects are often short-lived, especially without agents that materially slow breakdown, so it is best understood as an acute feel ingredient rather than a long-duration fat-loss ingredient.\u003c\/p\u003e\n\u003cp\u003eYohimbine HCl is one of the more evidence-backed stimulant-era fat-loss ingredients, particularly in leaner individuals and fasted contexts, because it antagonizes alpha-2 adrenergic receptors. That matters because alpha-2 receptors act like brakes on fat release in stubborn fat areas. Rauwolscine, often called alpha-yohimbine, is mechanistically similar and appears to offer appetite-suppressive effects in preclinical data. The KB specifically notes its synergy with caffeine through complementary central stimulation, but also emphasizes the increased stimulant burden and dose caution this creates. That is exactly the story of Yellow Demons: not subtle support, but stacked stimulation.\u003c\/p\u003e\n\u003cp\u003ePeppermint is the outlier, but a smart one. Strong evidence supports peppermint for digestive comfort and nausea-related symptoms in other contexts. In a high-stim capsule, it likely serves a practical role: making a harsh stimulant blend feel cleaner in the gut and easier to tolerate.\u003c\/p\u003e\n\u003cp\u003eThe synergy is straightforward. Caffeine drives alertness. Black tea extends the stimulant profile. Yohimbine HCl and rauwolscine increase adrenergic pressure and appetite suppression while supporting lipolysis. PEA sharpens the mental feel. Peppermint helps smooth the gastrointestinal side. The weakness is transparency: 515mg is the total blend weight, but the exact amounts of the most safety-relevant ingredients are hidden. That is common in the thermogenic category, but it is still a meaningful limitation. Day 1, users should expect a fast, assertive energy rise, stronger body heat, reduced hunger, and a more intense training or cardio mindset. Over 2-4 weeks, the practical benefit is not a “loading” effect but improved consistency in adherence: less diet fatigue, better drive to train, and better ability to stay active while cutting. The tradeoff is clear: stronger acute feel, less label transparency.\u003c\/p\u003e\n\u003ch2\u003eKey Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e515mg proprietary thermogenic blend — this capsule packs six active agents into a compact serving built for intensity, not window dressing. The tradeoff is that the exact dose of each stimulant is hidden, so the experience matters more than any single printed number.\u003c\/li\u003e\n\u003cli\u003eCaffeine anhydrous as the formula backbone — fast-absorbing caffeine works through adenosine receptor antagonism to increase alertness, reduce perceived fatigue, and make training or cardio feel more doable when calories are low. In a fat burner, that acute lift often determines whether you actually execute the session.\u003c\/li\u003e\n\u003cli\u003eYohimbine HCl included for adrenergic fat-loss support — yohimbine works by blocking alpha-2 adrenergic receptors, a mechanism tied to increased catecholamine-driven fat mobilization and stronger appetite suppression. This is one of the more serious thermogenic ingredients in the category, and it changes the profile of the product immediately.\u003c\/li\u003e\n\u003cli\u003eRauwolscine adds a second alpha-2 antagonist layer — often called alpha-yohimbine, rauwolscine is used for a sharper, harder-hitting stimulant effect and has preclinical support for appetite suppression. Paired with caffeine, it creates a more aggressive central nervous system experience than caffeine alone.\u003c\/li\u003e\n\u003cli\u003ePEA HCl for acute mood and drive — phenethylamine is commonly used to create a more elevated, urgent, and motivating pre-training feel. It is not a long-duration ingredient, but in the right formula it can noticeably improve the first-wave experience.\u003c\/li\u003e\n\u003cli\u003eBlack tea extract broadens the stimulant profile — beyond caffeine anhydrous alone, black tea can contribute additional methylxanthine support and thermogenic reinforcement. That helps the formula feel more layered than a one-ingredient caffeine pill.\u003c\/li\u003e\n\u003cli\u003ePeppermint is a practical inclusion in a harsh category — strong evidence supports peppermint for digestive comfort in other applications, and that makes sense here. In a high-stim thermogenic, smoother stomach feel is not cosmetic; it can determine whether the product is actually usable.\u003c\/li\u003e\n\u003cli\u003eB6, folic acid, and B12 support energy metabolism — these vitamins will not create the dramatic kick, but they are relevant cofactors in metabolic and neurological processes. Their inclusion rounds out the formula rather than leaving it as a purely stimulant-only shell.\u003c\/li\u003e\n\u003cli\u003eCapsule format makes dosing simple and portable — no mixing, no shaker, no powder residue, and no sweetened drink required. That matters for users who take their thermogenic before fasted cardio, commuting, or workday training sessions.\u003c\/li\u003e\n\u003cli\u003eDesigned for deficit phases, not off-season comfort — every active points toward energy, appetite control, and thermogenic intensity. This is the sort of formula people reach for when dieting gets hard and compliance becomes the real bottleneck.\u003c\/li\u003e\n\u003cli\u003eMore aggressive than mainstream fat burners — many formulas stop at caffeine plus green tea and call it a day. Yellow Demons escalates the category with yohimbine HCl and rauwolscine, which is exactly why it appeals to experienced users and not to everyone.\u003c\/li\u003e\n\u003cli\u003eHonest transparency note — the formula does use a proprietary blend, which means the most important stimulant doses are not individually disclosed. In this category that is common, but it still matters, especially for tolerance management and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePhysique athletes in a cutting phase who are already accustomed to stimulants and need more than a basic caffeine capsule. The combination of caffeine, yohimbine HCl, and rauwolscine is designed for the user who wants appetite suppression and a sharper training edge when body fat loss starts to stall.\u003c\/li\u003e\n\u003cli\u003eFasted-cardio users who prefer capsules over powders and want a compact thermogenic before morning activity. Yohimbine-class ingredients are especially popular in lean-out phases where appetite control and adrenergic drive matter as much as simple energy.\u003c\/li\u003e\n\u003cli\u003eExperienced gym-goers in a calorie deficit whose biggest problem is not knowledge but compliance. This formula is built for the person who knows how to diet, but struggles with low energy, fading motivation, and the mental drag that shows up after several weeks of restriction.\u003c\/li\u003e\n\u003cli\u003eShift workers or high-output professionals who train while dieting and need a stronger sense of urgency and focus before sessions. Caffeine, black tea extract, and PEA HCl are aligned with that need for immediate mental lift and perceived drive.\u003c\/li\u003e\n\u003cli\u003eUsers who respond well to yohimbine-based products and specifically seek that hard, thermogenic, appetite-blunting feel. Yellow Demons clearly targets that niche more directly than gentler fat burners built around carnitine, grains of paradise, or low-dose green tea.\u003c\/li\u003e\n\u003cli\u003eLifters who do not want a powdered pre-workout every day but still want a strong pre-training stimulant option. The capsule format makes this especially practical for travel, office use, or anyone who wants a no-mix thermogenic they can take on demand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eStart with 1 capsule taken 20-30 minutes before training, cardio, or the point in your day when energy and appetite control matter most. Because the formula contains a proprietary blend with undisclosed amounts of caffeine anhydrous, yohimbine HCl, and rauwolscine, do not stack your first few uses with coffee, energy drinks, pre-workouts, or additional thermogenics. Taking it on an empty stomach will usually make the experience feel stronger and faster, particularly for the yohimbine-class ingredients, but that can also increase the chance of jitters or stomach discomfort. If you are sensitive, consider taking it with a light meal and expect a slightly softer onset. Since this is a capsule, there are no mixing instructions, but hydration still matters; use it with a full glass of water and maintain fluid intake during training. Good stack partners are non-stimulant staples such as creatine monohydrate, electrolytes, or a stim-free pump product. Poor stack partners are other stimulant-heavy products or anything else containing yohimbine-like compounds. Cycling use is reasonable because frequent exposure to stimulant formulas can blunt the subjective effect over time. Store it in a cool, dry place and keep capsules tightly sealed to protect stability.\u003c\/p\u003e\n\u003ch2\u003eWhat to Expect\u003c\/h2\u003e\n\u003cp\u003eIn the first 10-15 minutes, most users will notice very little beyond the fact that they took a capsule, though sensitive users may start feeling an empty-stomach stimulant rise sooner. Around 15-30 minutes is when the formula should announce itself: caffeine uptake increases alertness, and the yohimbine-class ingredients can add a sharper, more physical sense of stimulation, body heat, or appetite suppression. From roughly 30-75 minutes, this is likely the peak performance window for cardio, dieting productivity, or stimulant-assisted training focus. During that period, the formula should feel more urgent than smooth, especially for users who are not highly stimulant-adapted. After that, the experience depends heavily on the hidden stimulant doses, but users can expect either sustained alertness or a gradual taper rather than a formal time-release curve. Over days 1-7, the main change is tolerance discovery, not ingredient loading. Over weeks 2-4, the practical benefit is improved adherence to cardio, training, and calorie restriction, though stimulant habituation may reduce the initial novelty if used too frequently.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat kind of product is ASL Yellow Demons?\u003c\/summary\u003e\u003cp\u003eASL Yellow Demons is a high-stim thermogenic fat burner in capsule form. Its formula centers on a 515mg proprietary blend containing caffeine anhydrous, black tea extract, PEA HCl, yohimbine HCl, rauwolscine, and peppermint, plus supportive B vitamins.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow much caffeine is in Yellow Demons?\u003c\/summary\u003e\u003cp\u003eThe exact caffeine amount is not disclosed on the verified label because caffeine anhydrous is part of the 515mg proprietary blend. That means you should treat the product as a high-stim formula and avoid assuming it is equivalent to a standard caffeine pill.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy do yohimbine HCl and rauwolscine matter in this formula?\u003c\/summary\u003e\u003cp\u003eThese are the ingredients that make Yellow Demons more aggressive than basic caffeine-only fat burners. Both act on alpha-2 adrenergic signaling, which is why users often notice stronger appetite suppression, body heat, and a harsher stimulant feel.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs Yellow Demons good for fasted cardio?\u003c\/summary\u003e\u003cp\u003eIt is clearly positioned for that use case, especially because yohimbine-class ingredients are commonly used in lean-out phases and fasted settings. That said, fasted use will often feel stronger, so stimulant-sensitive users should be especially cautious.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I take Yellow Demons with pre-workout?\u003c\/summary\u003e\u003cp\u003eIn most cases, no. Because the blend already contains undisclosed caffeine plus yohimbine HCl and rauwolscine, stacking it with another stimulant pre-workout can create an unnecessarily high stimulant load.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does PEA HCl do in Yellow Demons?\u003c\/summary\u003e\u003cp\u003ePEA HCl is generally included for acute mood elevation and a more urgent, driven training feel. It is more about how the product feels in the moment than about long-duration metabolic support.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy is peppermint included in a thermogenic?\u003c\/summary\u003e\u003cp\u003ePeppermint is likely there to improve tolerability. It has strong evidence for digestive comfort in other applications, and that is a smart addition in a formula that otherwise leans heavily into harsh stimulants.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs Yellow Demons beginner-friendly?\u003c\/summary\u003e\u003cp\u003eNo. The presence of yohimbine HCl and rauwolscine inside a proprietary blend makes it a better fit for advanced users with established stimulant tolerance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShould I cycle Yellow Demons?\u003c\/summary\u003e\u003cp\u003eCycling is sensible because frequent stimulant use can reduce the subjective impact over time. Many experienced users reserve formulas like this for more demanding phases of a cut rather than taking them year-round.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat makes Yellow Demons less transparent than fully disclosed fat burners?\u003c\/summary\u003e\u003cp\u003eThe label tells you which ingredients are present, but not how much caffeine, yohimbine HCl, rauwolscine, black tea extract, PEA HCl, or peppermint you get individually. In a safety-relevant stimulant category, that is a meaningful limitation compared with a full-disclosure label.\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=\"ASL Yellow Demons\"\u003e\n\u003cmeta itemprop=\"brand\" content=\"ASL\"\u003e\n\u003cmeta itemprop=\"category\" content=\"Pre-Workout\"\u003e\n\u003cmeta itemprop=\"description\" content=\"What it is: ASL Yellow Demons is a high-stimulant thermogenic fat burner in capsule form designed for energy, appetite suppression, and cutting-phase support.\n\nKey formula stats: 9 listed actives total including Vitamin B6 (5mg), folic acid (400mcg), Vitamin B12 (100mcg), and a 515mg proprietary blend containing caffeine anhydrous, black tea extract, PEA HCl, yohimbine HCl, rauwolscine, and peppermint. Total caffeine is not disclosed. Form factor is 1 capsule per serving with 100 servings per bo\"\u003e\n\u003cmeta itemprop=\"dateModified\" content=\"2026-04-23T12:01:13Z\"\u003e\n\u003c\/div\u003e","brand":"ASL","offers":[{"title":"Default Title","offer_id":40747572625469,"sku":"YELLOWDEMONS","price":39.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/6021\/8173\/files\/477e1e0e-7ef6-41d0-b190-a493392846e4.dd8b0b86910e3b2ae71fa50e6da36e80_a7aef739-e838-483a-8ee5-7ac323c5e4b0.webp?v=1728982005"}],"url":"https:\/\/svpplements.com\/collections\/asl-fat-burners.oembed","provider":"SVPPLEMENTS","version":"1.0","type":"link"}