Inspired Nutraceuticals | 3MB3R Serum P.M.Inspired Nutraceuticals
- SuppVault Score
- 99/100
- Per serving
- $1.29

Inspired Nutraceuticals
Bedtime sleep support with carnitine and Mitoburn™ metabolism backing
$39.99 $1.29/servingInspired 3mb3r Serum P.M. is a liquid bedtime formula built for sleep support and nighttime body-composition strategy. It pairs 3mg melatonin and 100mg 5-HTP with 1,000mg L-Carnitine and 250mg Mitoburn™ for recovery-minded evening use.
Inspired Nutraceuticals publishes test results from independent third-party labs. Svpplements links to the manufacturer’s data — we don’t test products ourselves.
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Creatine handles phosphocreatine replenishment and high-intensity performance during the day, while 3mb3r Serum P.M. focuses on nighttime recovery and sleep quality. This is a clean division of labor: performance support in training hours, recovery support before bed.
Take creatine daily any time of day; take 3mb3r Serum P.M. 30-60 minutes before bed
Magnesium complements melatonin by supporting nervous system relaxation through different pathways, including NMDA modulation and GABA-related effects. It is one of the most rational additions for users who want a more complete bedtime stack without reaching for stimulatory fat burners at night.
Take magnesium with or shortly before 3mb3r Serum P.M. in the evening
3mb3r Serum P.M. helps improve the sleep window and recovery environment, while protein supplies the amino acids needed to actually rebuild tissue. Better sleep plus adequate protein intake is far more meaningful for body composition than relying on a bedtime formula alone.
Use protein earlier in the evening or post-workout; use 3mb3r Serum P.M. closer to bedtime
This product is intentionally non-stimulant and nighttime-specific, so it pairs well with a daytime thermogenic approach if your overall goal is fat loss. The daytime product can handle acute energy and output, while 3mb3r Serum P.M. handles sleep quality and nighttime body-composition support.
Use the daytime fat burner in the morning or pre-training; use 3mb3r Serum P.M. only before bed
Likely stronger as a comprehensive sleep category formula with broader nighttime support.
3mb3r Serum P.M. offers a more complete bedtime formula with melatonin and metabolic support.
This product is more balanced for actual sleep use than a single-ingredient GABA option.
Choose this for sleep plus body-composition support, or them for a more traditional sleep-aid angle.
Side-by-side against the closest competitors. Score reflects clinical dosing, transparency, and testing.
Inspired Nutraceuticals | 3MB3R Serum P.M.Inspired Nutraceuticals
Alpha Lion | SH Sleep | 30 ServingsAlpha Lion
Likely stronger as a comprehensive sleep category formula with broader nighttime support.
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NutraBio | 5-HTP | 90 ServingsNutraBio
3mb3r Serum P.M. offers a more complete bedtime formula with melatonin and metabolic support.
Compare side-by-side →
NutraBio | GABA | 45 ServingsNutraBio
This product is more balanced for actual sleep use than a single-ingredient GABA option.
Compare side-by-side →Comparison data combines live storefront pricing with our SuppVault analysis. Competitor scores reflect public-label data; manufacturer-side changes may not be reflected in real time.
Inspired Nutraceuticals 3mb3r Serum P.M. is a sleep-and-body-composition liquid designed around a simple but intelligent idea: nighttime is not just for sedation, it is a physiological window for recovery, appetite regulation, and metabolic support. Instead of relying on a one-note melatonin dose alone, this formula combines 1,000mg L-Carnitine, 250mg Mitoburn™ (β-aminoisobutyric acid), 100mg 5-HTP, 25mg GABA, and 3mg melatonin in a fully disclosed label. That gives it a dual identity: a bedtime formula that aims to help you fall asleep and a P.M. support product for people chasing better recovery and leaner body composition.
Melatonin at 3mg is the anchor. This is a meaningful dose within the range commonly used in sleep-support products, and melatonin has strong evidence for improving sleep quality and helping regulate circadian timing. Mechanistically, melatonin acts as a chronobiotic, signaling to the body that it is time to transition into the sleep phase rather than acting like a blunt sedative. In practical terms, this is the ingredient most users will notice first: easier sleep initiation, a more defined "wind-down," and better alignment between bedtime and the body’s internal clock.
5-HTP at 100mg supports that transition from another angle. As a direct precursor to serotonin, 5-HTP helps feed the neurotransmitter pathway tied to mood, satiety, and downstream melatonin production. Research on 5-HTP is moderate overall, with meaningful interest in sleep and appetite regulation. At 100mg, this is a practical bedtime dose: enough to complement melatonin and support a calmer mental state without turning the formula into a high-dose serotonin play. Users often experience this as reduced mental chatter and a smoother drift toward sleep, especially when nighttime stress or dieting makes it harder to settle down.
GABA at 25mg is included as a light supporting player rather than the formula’s centerpiece. Oral GABA research is mixed and limited, partly because blood-brain barrier transport remains debated, but human data does suggest relaxation effects in some settings. At 25mg, this is a modest dose, below the larger amounts commonly seen in standalone relaxation products, so it should be viewed as supportive rather than transformative. Its role here is formula architecture: add another calming signal alongside melatonin and 5-HTP.
On the body-composition side, 1,000mg L-Carnitine supports fatty acid transport into mitochondria, where fats can be oxidized for energy. Research on carnitine is moderate, and studies often use around 2g daily, so 1g is below the more common research benchmark but still a meaningful inclusion in a nightly formula, especially for consistent daily use. It is not a stimulant fat burner. It is a mitochondrial support ingredient with recovery and fatigue relevance, and over time it fits a broader recomposition strategy.
Mitoburn™ at 250mg is one of the most distinctive inclusions here. β-aminoisobutyric acid is a myokine-associated metabolite linked to exercise-like metabolic signaling and interest in fat-loss support. This gives 3mb3r Serum P.M. a real differentiator versus generic sleep formulas: it is not just trying to help you sleep, it is trying to make the nighttime formula part of your body-composition stack.
The synergy is the point. Melatonin, 5-HTP, and GABA help shift the nervous system toward rest; L-Carnitine and Mitoburn™ position the product as a recovery-and-fat-metabolism support rather than a pure sedative. Transparency is another strong point: no proprietary blend, no hidden dosages, and every active is disclosed. Day 1, expect the clearest effect from the 3mg melatonin and 100mg 5-HTP: a more obvious wind-down and easier sleep onset. Over 2-4 weeks, the bigger picture is better bedtime consistency, potentially improved next-day recovery from sleeping better, and more coherent support for a cut or recomp phase through daily use of carnitine and Mitoburn™.
Melatonin primarily acts as a chronobiotic rather than a blunt sedative, signaling biological night to the suprachiasmatic nucleus and downstream circadian systems. Supplemental melatonin can advance sleep onset when timed before intended bedtime, particularly when endogenous signaling is delayed by stress, travel, or late light exposure. The 3mg dose sits well within commonly used supplemental ranges and is likely the main acute driver of perceived sleepiness here.
5-HTP is the direct precursor to serotonin and can increase serotonergic substrate availability independent of the rate-limiting hydroxylation step required from tryptophan. That matters because serotonin signaling intersects with mood stability, relaxation, satiety, and downstream melatonin physiology. In a bedtime formula, 100mg is a meaningful inclusion for users whose nighttime problem includes both mental overactivity and increased food drive during dieting.
L-Carnitine facilitates transport of long-chain fatty acids into mitochondria via the carnitine shuttle, linking it mechanistically to substrate utilization and energy metabolism. While acute fat-loss sensations should not be expected, regular intake may support fatigue management, recovery, and metabolic efficiency in the context of training and dieting. The 1,000mg dose is meaningful, though still below the midpoint of many athletic-use protocols.
Mitoburn™ supplies L-BAIBA, a myokine-associated metabolite linked to exercise-responsive metabolic signaling. Preclinical and translational interest centers on effects related to mitochondrial function, browning-related pathways, and whole-body energy regulation, though the human evidence base remains less mature than legacy sleep actives. Its value in this formula is strategic: it gives a nighttime product a body-composition identity without relying on overt stimulation.
Verified athletes can view NCAA, WADA, and high-school compliance status for this product.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
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