10 Best Melatonin Third Party Tested of 2025

Tested and Reviewed: Top 10 Melatonin Third Party Tested deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Nutricost

Nutricost Melatonin 5mg, 240 Tablets - 5mg Per Serving, Non-GMO, Gluten Free

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Editor's bottom line:

“This melatonin third party tested is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Easy-To-Swallow Melatonin Tablets
240 Tablets of Melatonin Per Bottle
5mg of Melatonin Per Serving (240 Servings)
GMO-free and Gluten Free
Made in a NSF Certified, GMP Compliant, FDA Registered Facility

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Picked by 397 people today

9.5

Nutricost

Nutricost Melatonin 10mg, 240 Tablets - 10mg Per Serving, Non-GMO, Gluten Free

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Main Highlights

Easy-To-Swallow Melatonin Tablets
240 Tablets of Melatonin Per Bottle
10mg of Melatonin Per Serving (240 Servings)
Non-GMO, Soy Free, and Gluten Free
Made in an NSF Certified, GMP Compliant, FDA Registered Facility.

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9.5

Nature Made

Nature Made Melatonin 3mg Sleep Aids for Adults, 100% Drug Free Sleep Aid, Sleep Supplements, 240 Tablets, 240 Day Supply

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Main Highlights

Adults take one of these Melatonin 3mg sleep supplements one hour before bedtime with water
Occasional use sleep support supplement: Contains one 240 count bottle of Nature Made Melatonin 3 mg Tablets, a nighttime sleep aid
These Nature Made Melatonin Tablets are 100% drug free, gluten free, non habit forming, have no color added, no artificial flavors, and no preservatives
Melatonin is a hormone found naturally in the body that helps to regulate sleep and wake cycles
Each Nature Made 3mg Melatonin Tablet helps you fall asleep faster and supports restful sleep with a lower dose Melatonin tablet
United States Pharmacopeia (USP) Verified; #1 Pharmacist Recommended Vitamin & Supplement Brand*
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

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9.2

THORNE

THORNE - Melaton-3 - 3mg Melatonin Supplement - Supports Normal Circadian Rhythms, Restful Sleep & Relaxation* - NSF Certified for Sport - 60 Capsules

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Main Highlights

Melatonin: Supports restful sleep patterns*
Circadian Rhythms: Helps maintain normal circadian rhythms*
Jet Lag: Provides a benefit for shift workers and travelers with jet lag*
NSF Certified for Sport: Tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

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9.0

Pure Encapsulations

Pure Encapsulations Melatonin 3 mg - Antioxidant Supplement to Support Natural Sleeping & Relief of Occasional Sleeplessness - for Natural Sleep Support* - 60 Capsules

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Main Highlights

Melatonin Supports Sleep Cycle: Melatonin helps facilitate the natural functioning of the pineal gland to support the body's sleep and wake cycle*
Restful Sleep Support: Aids relaxation in the body for restful sleep; designed to assist in the duration of sleep to help support your natural sleep cycle*
Pineal Gland Support: Melatonin is a hormone produced by the pineal gland and is secreted in a circadian rhythm by enzymes that are activated by darkness*
Pure Quality: Our supplements are made with premium ingredients sourced from trusted suppliers and guided by nutritional experts, then manufactured and tested to verify potency and purity*
Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs

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8.8

NOW Foods

NOW Foods Supplements, Melatonin 3 mg, Free Radical Scavenger, Healthy Sleep Cycle, 180 Veg Capsules

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Main Highlights

FREE RADICAL SCAVENGER*: A potent free radical scavenger naturally produced in the pineal gland
GASTROINTESTINAL SUPPORT*: It's present in high amounts in the gastrointestinal tract and is involved in the maintenance of a healthy gastrointestinal lining*
HEALTHY SLEEP CYCLE*: It is involved in many biological functions including regulation of normal sleep/wake cycles and the regulation of the immune system
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
Packaged in the USA by a family owned and operated company since 1968

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8.6

Natrol

Natrol 10 mg Melatonin Gummies, Sleep Support for Adults, Melatonin Supplements for Sleeping, 90 Strawberry-Flavored Gummies, 45 Day Supply

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Main Highlights

FALL ASLEEP FASTER (1): Enjoy a better night's sleep with melatonin 10mg gummies for adults, featuring gummy melatonin 10mg that promotes sleep in as little as 15 minutes and supports occasional sleeplessness (1)
STAY ASLEEP LONGER (1): Featuring 10 mg melatonin gummies per serving, these sleep gummies help you stay asleep longer so you wake up feeling refreshed and revitalized(1)
100% DRUG-FREE SLEEP SUPPLEMENT: Natrol melatonin gummies for adults are 100% drug-free, non-habit forming, vegetarian, gelatin-free; Natrol melatonin 10mg gummies do not contain synthetic dyes, artificial flavors or sweeteners
DELICIOUS TASTING MELATONIN GUMMIES: Pectin-based Natrol 10mg melatonin with a delicious strawberry flavor and soft texture, making these 10mg gummy melatonin sleep supplements easy and delicious to take
#1 DRUG FREE SLEEP AID SUPPLEMENT BRAND IN AMERICA(2): Natrol adult melatonin gummies 10 mg from the leading drug-free aid supplement brand help manage sleep and wake cycles for a better nights rest(1)

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8.3

Pure Encapsulations

Pure Encapsulations Melatonin-SR - Extended Release Melatonin - Supports Restful Sleep* - Sleep Supplement - Gluten Free & Vegan - 60 Capsules

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Main Highlights

Sleep Support: Our Pure Encapsulations Melatonin-SR ensures prolonged absorption for a 6-hour sleep supplement support*
Restful Sleep Support: Melatonin SR aids relaxation and sleep patterns to support a peaceful nights sleep*
Pure Ingredients for Natural Support: Supports the body's circadian rhythm and endocrine secretions for high-quality gluten-free sleep supplementation*
Suggested Use: As a dietary supplement, take 1 sleep supplement capsule 30-60 minutes before bedtime
Pure Difference: What we leave out matters, too; Pure Encapsulations products are FREE FROM common allergens, artificial or unnecessary ingredients, and GMOs

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8.1

Nature Made

Nature Made Melatonin 5mg Tablets Extra Strength, 100% Drug Free Sleep Aid for Adults, 90 Tablets, 90 Day Supply

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Main Highlights

Occasional use sleep support supplement: Contains one 90 count bottle of Nature Made 5 mg melatonin tablets for a 90-day supply of sleep supplements for adults
Adults take one of these 5mg Melatonin sleep supplements one hour before bedtime with water; do not exceed 2 tablets daily
Melatonin is a hormone found naturally in the body that helps to regulate sleep and wake cycles
These Nature Made Melatonin Tablets are 100% drug free, gluten free, non habit forming, and have no color added, no artificial flavors, and no preservatives
Each Nature Made 5 mg Melatonin Tablet helps you fall asleep faster and supports restful sleep
United States Pharmacopeia (USP) Verified; #1 Pharmacist Recommended Vitamin & Supplement Brand*
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

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8.1

THORNE

THORNE - Melaton-5 - 5mg Melatonin Supplement - Supports Normal Circadian Rhythms, Restful Sleep & Relaxation* - 60 Capsules

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Main Highlights

Melatonin: Promotes restful sleep patterns*
Circadian Rhythms: Helps maintain normal circadian rhythms*
Jet Lag: Provides a benefit for shift workers and travelers with jet lag*
Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

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Our Best Overall Choice

Best Choice

9.7

Nutricost

Nutricost Melatonin 5mg, 240 Tablets - 5mg Per Serving, Non-GMO, Gluten Free

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Easy-To-Swallow Melatonin Tablets
240 Tablets of Melatonin Per Bottle
5mg of Melatonin Per Serving (240 Servings)
GMO-free and Gluten Free
Made in a NSF Certified, GMP Compliant, FDA Registered Facility

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Deals are Live

Special Amazon deal ends in:

10 Best Melatonin Third Party Tested of 2025

Tested and Reviewed: Top 10 Melatonin Third Party Tested deals with expert ratings from 8.1 to a perfect 10

Nutricost

Nutricost Melatonin 5mg, 240 Tablets - 5mg Per Serving, Non-GMO, Gluten Free

Editor's bottom line:

Main Highlights

Nutricost

Nutricost Melatonin 10mg, 240 Tablets - 10mg Per Serving, Non-GMO, Gluten Free

Main Highlights

Nature Made

Nature Made Melatonin 3mg Sleep Aids for Adults, 100% Drug Free Sleep Aid, Sleep Supplements, 240 Tablets, 240 Day Supply

Main Highlights

THORNE

THORNE - Melaton-3 - 3mg Melatonin Supplement - Supports Normal Circadian Rhythms, Restful Sleep & Relaxation* - NSF Certified for Sport - 60 Capsules

Main Highlights

Pure Encapsulations

Pure Encapsulations Melatonin 3 mg - Antioxidant Supplement to Support Natural Sleeping & Relief of Occasional Sleeplessness - for Natural Sleep Support* - 60 Capsules

Main Highlights

NOW Foods

NOW Foods Supplements, Melatonin 3 mg, Free Radical Scavenger*, Healthy Sleep Cycle*, 180 Veg Capsules

Main Highlights

Natrol

Natrol 10 mg Melatonin Gummies, Sleep Support for Adults, Melatonin Supplements for Sleeping, 90 Strawberry-Flavored Gummies, 45 Day Supply

Main Highlights

Pure Encapsulations

Pure Encapsulations Melatonin-SR - Extended Release Melatonin - Supports Restful Sleep* - Sleep Supplement - Gluten Free & Vegan - 60 Capsules

Main Highlights

Nature Made

Nature Made Melatonin 5mg Tablets Extra Strength, 100% Drug Free Sleep Aid for Adults, 90 Tablets, 90 Day Supply

Main Highlights

THORNE

THORNE - Melaton-5 - 5mg Melatonin Supplement - Supports Normal Circadian Rhythms, Restful Sleep & Relaxation* - 60 Capsules

Main Highlights

Our Best Overall Choice

Nutricost

Nutricost Melatonin 5mg, 240 Tablets - 5mg Per Serving, Non-GMO, Gluten Free

Editor's bottom line:

Main Highlights

Deals are Live

NOW Foods Supplements, Melatonin 3 mg, Free Radical Scavenger, Healthy Sleep Cycle, 180 Veg Capsules