🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

1 Veg Capsule(s) Serving Size
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

5 mg
📊 Market median: 3.0mg (984 products) 📚 236 studies (Tier A: 2, B: 109)
This product: 5mg UL 10mg

Other Ingredients

Cellulose Vegetable Polysaccharide Magnesium Stearate

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (86% of products) Nutrient (7% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Kosher Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Usage: Take 1 capsule near bedtime with water.

⚠️ Warnings & Precautions

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only at bedtime.

Not for pregnant or nursing women.

May cause drowsiness. Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery.

Consult physician if taking medication (especially sedatives and anti-depressants) or have a medical condition (including depression, high blood pressure and epilepsy).

🧪 Formulation Notes

Non-GMO

Triangle K

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Vegetarian/Vegan

Additional Information

Melatonin is a potent free radical scavenger naturally produced in the pineal gland and present in high amounts in the gastrointestinal tract.* It is involved in many of the body, brain and glandular biological functions including regulation of normal sleep/wake cycles, regulation of the immune system and maintenance of a healthy gastrointestinal lining.*

Capsule size

Natural color variation may occur in this product.

GMP Quality Assured

Store in a cool, dry place after opening.

Healthy sleep cycle*

~ Free radical scavenger* ~ Gastrointestinal support*

Non-GMO

CODE 3555 V3

General Health

Family owned since 1968.

Triangle K

Product Details

UPC / SKU 7 33739 03555 4
DSLD Entry Date 2017-02-24
Product Type Non-Nutrient/Non-Botanical
Form Capsule
Brand NOW
DSLD ID 71222
Data Updated 2026-04-11

Research Evidence

291 Research Sources
55 Avg Quality Score
129 Meta Analysis
93 Systematic Review
51 Rct
11 Clinical Trial
2 Other
2 Regulatory Source
1 Openfda Safety
A Interventions for preventing delirium in hospitalised non-ICU patients
Meta Analysis The Cochrane database of systematic reviews 2016
A Melatonin for preoperative and postoperative anxiety in adults
Meta Analysis The Cochrane database of systematic reviews 2020
A Effect of melatonin on quality of life and symptoms in patients with cancer: a systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ open 2022
B Pharmacological interventions for prevention of weight gain in people with schizophrenia
Meta Analysis The Cochrane database of systematic reviews 2022
B Melatonin for pre- and postoperative anxiety in adults
Meta Analysis The Cochrane database of systematic reviews 2015
B Prevention of depression in adults with long-term physical conditions
Meta Analysis The Cochrane database of systematic reviews 2021
B Comparative effects of pharmacological interventions for the acute and long-term management of insomnia disorder in adults: a systematic review and network meta-analysis
Systematic Review Lancet (London, England) 2022
B Does melatonin administration reduce the incidence of postoperative delirium in adults? Systematic review and meta-analysis
Meta Analysis BMJ open 2023
B Second-generation antidepressants for preventing seasonal affective disorder in adults
Meta Analysis The Cochrane database of systematic reviews 2015
B Interventions for preventing type 2 diabetes in adults with mental disorders in low- and middle-income countries
Meta Analysis The Cochrane database of systematic reviews 2021
View all evidence for Melatonin →

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