Natural Factors Stress-Relax, Melatonin, 1 mg, 90 Chewable Tablets supplement bottle
Natural Factors

Stress-Relax, Melatonin, 1 mg, 90 Chewable Tablets

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Melatonin 1 mg **
Bioavailability Fair

Absorption Rating

  • Melatonin Fair
Other Ingredients Excellent

Fillers & Additives

  • Lactose (from milk)
  • Microcrystalline Cellulose
  • Natural Peppermint Flavor
  • Croscarmellose Sodium
  • Magnesium Stearate (Vegetable Grade)
Efficacy Excellent

Dosage Analysis

  • Melatonin 1 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Melatonin 1 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Lactose (from milk) Unknown
Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Natural Peppermint Flavor Generally_safe

It is used to add a peppermint flavor.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Magnesium Stearate (Vegetable Grade) Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Price Comparison

iHerb $4.35
Best Price

Price History

Tracked across major retailers. Updated periodically.

$6$5$4$3$2 Mar 12 $4.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Natural Factors

Founded 1950 · Coquitlam, British Columbia, Canada · 390 products · naturalfactors.com

Certifications

5 certifications
B Corp Certified Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

5 incidents
Prop 65 Lead2025-10-31Source
Recall Hi Potency B Complex, RevitalX, Super Multi® IRON FREE2024-07-19Source
Lawsuit Products labeled as containing glucosamine sulfate did not contain the ingredient.2021Source
Prop 65 Lead2016-01-13Source
Recall Natural Factors L-Arginine 500mg2006-04-05Source
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Frequently Asked Questions
Is Natural Factors Stress-Relax, Melatonin a good supplement?

Natural Factors Stress-Relax, Melatonin, 1 mg, 90 Chewable Tablets received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 1 active ingredients Of the 5 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Natural Factors, holds a brand trust score of 88/100 with 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in Natural Factors Stress-Relax, Melatonin?

Natural Factors Stress-Relax, Melatonin contains 1 active ingredients: Melatonin (1 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Factors Stress-Relax, Melatonin safe to take?

Natural Factors Stress-Relax, Melatonin, 1 mg, 90 Chewable Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Natural Factors a trustworthy supplement brand?

Natural Factors receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1950 and headquartered in Coquitlam, British Columbia, Canada, the company offers 390 products in their lineup. They hold 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Natural Factors has 5 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.