Stay Limitless

The Research Behind the Formula

We don't ask you to take our word for it. Each active ingredient is chosen on the strength of published, peer-reviewed human research. Below is the evidence — summarized plainly, linked in full.

Creatine · Strength & Performance

Creatine

Boost strength & performance

Creatine monohydrate is the single most studied sports-nutrition ingredient in existence. Our formula delivers a full, dose-true 4.5 g per serving — the level shown in the literature to maintain elevated muscle creatine stores.

Creatine Monohydrate4.5 g / serving

In its scientific position stand, the International Society of Sports Nutrition concluded that creatine monohydrate is the most effective nutritional supplement available for increasing high-intensity exercise capacity and lean body mass during training. A daily intake of 3–5 g maintains saturated muscle stores — our 4.5 g serving sits squarely in that maintenance range.

ISSN position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine
Kreider et al. · J. Int. Soc. Sports Nutr. · 2017 · Position stand
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Limitless Drive · Libido & Desire

Limitless Drive

Ignite libido & desire

A botanical stack built around ingredients with human trial data spanning sexual desire, blood flow, and hormonal balance. Each is included for a documented mechanism, not folklore.

Maca Root Extract 10:1150 mg

A systematic review of randomized trials found evidence that maca improves sexual desire in healthy men. Our 10:1 atomized extract concentrates the active fraction, with 150 mg corresponding to roughly 1.5 g of raw root — the dose range used in the supporting trials.

Maca (L. meyenii) for improving sexual function: a systematic review
Shin et al. · BMC Complement. Altern. Med. · 2010 · Systematic review of RCTs
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Panax Ginseng (≥5% ginsenosides)150 mg

A Cochrane systematic review reported that ginseng may improve self-reported erectile function compared with placebo, with effects thought to be linked in part to nitric-oxide–mediated blood flow.

Ginseng for erectile dysfunction: a Cochrane systematic review
Lee et al. · World J. Mens Health · 2021 · Cochrane systematic review
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Grape Seed Extract (95% OPC)150 mg

A meta-analysis of 16 randomized controlled trials found that grape seed extract, rich in proanthocyanidins, had a beneficial effect on blood pressure — part of the vascular and circulatory support relevant to healthy blood flow.

The impact of grape seed extract treatment on blood pressure changes: a meta-analysis of 16 RCTs
Zhang et al. · Medicine (Baltimore) · 2016 · Meta-analysis of RCTs
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Saffron Extract (≥2% Safranal)30 mg

In a randomized, double-blind, placebo-controlled trial, saffron significantly improved measures of erectile function versus placebo over six weeks.

Possible effects of saffron (Crocus sativus) in the treatment of erectile dysfunction: a randomized, double-blind, placebo-controlled trial
Tadayon Najafabadi et al. · J. Herb. Med. · 2022 · Randomized controlled trial
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Boron (glycinate)3 mg

In a human study, daily boron supplementation increased free testosterone and reduced inflammatory markers in men. The evidence base is early and the studied dose was higher than ours, so we position boron as supportive rather than the headline actor.

Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines
Naghii et al. · J. Trace Elem. Med. Biol. · 2011 · Human interventional study
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Focus · Reach Flow State

Focus

Reach flow state — stim-free

A stimulant-free nootropic blend. Each ingredient is supported by human trials on attention, mental energy, or cognitive performance — no caffeine required.

Citicoline250 mg

In a randomized, double-blind, placebo-controlled trial, citicoline improved memory performance in healthy adults. Trials commonly use 250–500 mg/day; our 250 mg sits at the lower end of the studied range.

Citicoline and memory function in healthy older adults: a randomized, double-blind, placebo-controlled clinical trial
Nakazaki et al. · J. Nutr. · 2021 · Randomized controlled trial
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L-Theanine200 mg

A randomized, placebo-controlled, double-blind trial using 200 mg/day — the exact dose in our formula — found reductions in stress-related symptoms alongside improvements in verbal fluency and executive function in healthy adults.

Effects of L-theanine administration on stress-related symptoms and cognitive functions in healthy adults: a randomized controlled trial
Hidese et al. · Nutrients · 2019 · Randomized controlled trial
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ALCAR (Acetyl-L-Carnitine)120 mg

A randomized controlled trial found that acetyl-L-carnitine reduced physical and mental fatigue and improved cognitive scores. Note: the trial used substantially higher daily doses than our 120 mg, so ALCAR is included as a complementary, not primary, active.

L-carnitine treatment reduces severity of physical and mental fatigue and increases cognitive functions: a randomized and controlled clinical trial
Malaguarnera et al. · Am. J. Clin. Nutr. · 2007 · Randomized controlled trial
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Sleep · Lights Out

Sleep

Natural relaxation & deep sleep

A nighttime formula combining well-studied calming and sleep-supporting ingredients. Each has randomized human trial data behind it.

Magnesium (from Glycinate)60 mg

A randomized, placebo-controlled trial found that magnesium bisglycinate — the same gentle, well-absorbed form we use — reduced insomnia severity in adults reporting poor sleep. The trial used a higher elemental dose, so we pair magnesium with the actives below rather than relying on it alone.

Magnesium bisglycinate supplementation in healthy adults reporting poor sleep: a randomized, placebo-controlled trial
Schuster et al. · Nat. Sci. Sleep · 2025 · Randomized controlled trial
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Glycine200 mg

In a randomized trial with polysomnography, glycine taken before bed improved subjective sleep quality and shortened the time to fall asleep, without altering normal sleep architecture. The supporting trials used 3 g, above our 200 mg, so glycine works here in concert with the full blend.

Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes
Yamadera et al. · Sleep Biol. Rhythms · 2007 · Randomized crossover trial
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Ashwagandha KSM-66200 mg

Randomized trials of the KSM-66 ashwagandha extract have reported reductions in perceived stress and serum cortisol, and improvements in sleep quality and sleep-onset latency in adults — summarized in the NIH Office of Dietary Supplements review.

Ashwagandha — Health Professional Fact Sheet (review of KSM-66 stress & sleep trials)
NIH Office of Dietary Supplements · Evidence review of RCTs
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Melatonin1 mg

A meta-analysis of randomized controlled trials concluded that melatonin reduces the time taken to fall asleep, increases total sleep time, and improves overall sleep quality. We use a deliberately low 1 mg dose — enough to support sleep onset without next-day grogginess.

Meta-analysis: melatonin for the treatment of primary sleep disorders
Ferracioli-Oda et al. · PLOS ONE · 2013 · Meta-analysis of RCTs
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The studies referenced above examine the individual ingredients in our formulas. They are provided for educational and transparency purposes and do not represent clinical trials of the finished Stay Limitless products. Individual study doses may differ from the amounts in our formulas. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

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