At 1 mg per capsule, this gives you a clinically relevant dose of **Melatonin** for sleep onset support — right at the low end of the studied range (0.5–5 mg), where recent research suggests lower doses may work just as well as higher ones for helping you fall asleep. You're getting the dose many sleep researchers actually recommend, since higher amounts (3–5 mg) don't consistently improve outcomes and can cause more morning grogginess.

**Melatonin** has strong clinical evidence for reducing the time it takes to fall asleep and resetting your circadian rhythm, particularly useful if you're dealing with jet lag or shift work. The capsule format makes it easy to take the suggested single dose 30 minutes before bed.

The main limitation is that melatonin primarily helps with sleep onset — if your issue is staying asleep or sleep quality rather than falling asleep, you may not get the full benefit you're looking for. This product also contains no complementary sleep ingredients like magnesium or L-theanine, so it's purely a circadian rhythm tool.

BioStacks
Swanson

Melatonin 1 mg

1 Capsule · 120 servings · $0.04/serving

iHerbAmazon

Best for

Sleep

Ingredients (1)

Melatonin

100%

Dose

1 mg

Target

0.5–5 mg

Form

—

Other Ingredients (3)

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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