BioStacks
Natrol

Melatonin, 3 mg

1 Tablet · 60 servings · $0.13/serving

iHerbAmazon

Best for

Sleep

Ingredients (3)

Melatonin

100%

Dose

3 mg

Target

0.5–5 mg

Form

—

Vitamin B-6

40%

Dose

10 mg

Target

25–100 mg

Form

Premium

Calcium

63 mg

Trace amount — not scored

Other Ingredients (5)

CarboxymethylcelluloseThickener

Carboxymethylcellulose was the second emulsifier (with polysorbate 80) in Chassaing et al. 2015 (Nature, PMID 25731162), which showed mucus-barrier thinning, a microbiota shift toward pro-inflammatory species, low-grade inflammation, and metabolic syndrome in mice. Chassaing 2022 (Gastroenterology, PMID 34774538) tested CMC directly in a randomized controlled human feeding trial and found reduced microbial diversity and bacterial encroachment into the normally sterile mucus layer in a susceptible subset of participants. EFSA's 2018 re-evaluation could not establish a safe level due to data gaps. For a purely textural excipient, the gut-barrier risk profile is unfavorable when safer thickeners are widely available.

Magnesium StearateLubricant

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

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Best taken in the evening

Take 30–60 minutes before bed. It's a circadian signal, not a daytime supplement. Vitamin B6 is easier on the stomach taken with food.

With food

On the label

Adults, take 1 tablet 30 minutes before bedtime.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$7.79

$10$20$50

Cheaper than 93% of 187 vitamin B6 supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Melatonin 3 mg

GNC

Melatonin 3 mg

😴 for Sleep

85
Advanced Sleep Melatonin 10 mg Time Release

Natrol

Advanced Sleep Melatonin 10 mg Time Release

😴 for Sleep

85
Melatonin, Time Release, 10 mg

Natrol

Melatonin, Time Release, 10 mg

😴 for Sleep

85
Melatonin CR

XYMOGEN

Melatonin CR

😴 for Sleep

85
Beauty zzZz

HUM

Beauty zzZz

😴 for Sleep

82

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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.