Melatonin

Melatonin is a Specialty supplement available in 1 form.

Not all forms of Melatonin are equal. The form you choose determines how much Melatonin actually reaches your tissues, and the difference between the best and worst forms can be substantial. Immediate release melatonin is the standard pharmaceutical form designed to mimic the body's natural rapid rise in melatonin that signals sleep onset. As an S1-tier form, research supports immediate release melatonin for supporting healthy sleep onset latency, circadian rhythm regulation, and jet lag adaptation compared to extended release forms.

Melatonin Preferred (Preferred Form) has a bioavailability rating of high absorption. Typical dose range: not yet documented in our database.

Melatonin is the primary hormone regulating the sleep-wake cycle, produced by the pineal gland in response to darkness. Immediate-release form supports sleep onset (typical dose 0.5-3mg). Beyond sleep, research demonstrates melatonin is one of the most potent endogenous antioxidants, with roles in immune regulation, gut health, and mitochondrial protection.

Phase I crossover PK study in 14 healthy volunteers; the immediate-release tablet reached a rapid high plasma peak then declined sharply, characterizing the IR kinetic profile vs a prolonged-release arm. PMID: 35918587

Randomized crossover PK in 14 healthy males; the immediate-release sublingual route produced an early high Cmax (Tmax ~23 min) vs the prolonged-release tablet (Tmax ~64 min). PMID: 37438493

Human PK clinical trial (NCT05419466) establishing the IR/PR/DR release hierarchy and confirming immediate-release as the fastest-onset oral melatonin form. PMID: 39174857

Melatonin is classified as Preferred Form by FormulaForge — our top recommendation for Melatonin. It carries a bioavailability rating of high absorption, meaning more of the active compound reaches your tissues per dose unit compared to lower-rated forms.

When choosing a Melatonin supplement, look for the S1 (best absorption) bioavailability tier on the label. Preferred Forms have the strongest research-backed evidence for efficient absorption.

Other forms may be appropriate depending on individual goals, cost considerations, and your healthcare provider’s guidance. The best form for you depends on your specific health needs.

For Melatonin, the typical dosing range is not yet documented in our database. Individual dose requirements vary based on health goals, body weight, and existing nutrient intake.

Side Effects: Specific side effect data for these forms is not yet documented in our database. In general, consult your healthcare provider regarding tolerability at higher doses.

These statements are based on structure/function research and have not been evaluated by the FDA. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting or changing a supplement regimen.

The following studies and findings inform FormulaForge classifications for Melatonin:

Phase I crossover PK study in 14 healthy volunteers; the immediate-release tablet reached a rapid high plasma peak then declined sharply, characterizing the IR kinetic profile vs a prolonged-release arm. PMID: 35918587

Randomized crossover PK in 14 healthy males; the immediate-release sublingual route produced an early high Cmax (Tmax ~23 min) vs the prolonged-release tablet (Tmax ~64 min). PMID: 37438493

Human PK clinical trial (NCT05419466) establishing the IR/PR/DR release hierarchy and confirming immediate-release as the fastest-onset oral melatonin form. PMID: 39174857