Natural Factors Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop, 120 g Powder = 30 Day Supply, Tropical Fruit Flavour, Magnesium Glycinate for Sleep, Sleep Aid, Gentle on the Stomach, High Absorption supplement bottle
Natural Factors

Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop, 120 g Powder = 30 Day Supply, Tropical Fruit Flavour, Magnesium Glycinate for Sleep, Sleep Aid, Gentle on the Stomach, High Absorption

What We Researched
4 active ingredients analyzed · 6 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
84
Product Score Good
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
GABA (gamma-aminobutyric acid) 100 mg
L-theanine 50 mg
Magnesium (bisglycinate) 200 mg
Melatonin (non-animal source) 2.5 mg
Bioavailability Good

Absorption Rating

  • GABA (gamma-aminobutyric acid) Poor
  • L-theanine Good
  • Magnesium (bisglycinate) Good
  • Melatonin (non-animal source) Fair
Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • Organic Maltodextrin
  • Natural flavours
  • Oryza sativa (rice) hull powder
  • Stevia Leaf Extract
  • Organic beet juice powder
Efficacy Very Good

Dosage Analysis

  • GABA (gamma-aminobutyric acid) 100 mg Effective
  • L-theanine 50 mg Under-dosed
  • Magnesium (bisglycinate) 200 mg Effective
  • Melatonin (non-animal source) 2.5 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
GABA (gamma-aminobutyric acid) 100 mg
L-theanine 50 mg
Magnesium (bisglycinate) 200 mg
Melatonin (non-animal source) 2.5 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Organic Maltodextrin Generally_safe

It is used as a filler or binder in supplements.

Natural flavours Unknown
Oryza sativa (rice) hull powder Unknown
Stevia Leaf Extract Safe

Provides sweetness without calories or blood sugar impact.

Organic beet juice powder Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$32$31$30$29$28 Mar 12 $30.47
Amazon_Ca

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 Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop a good supplement?

Natural Factors Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop, 120 g Powder = 30 Day Supply, Tropical Fruit Flavour, Magnesium Glycinate for Sleep, Sleep Aid, Gentle on the Stomach, High Absorption received a product quality score of 84/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 4 active ingredients Of the 6 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 Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop?

Natural Factors Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop contains 4 active ingredients: GABA (gamma-aminobutyric acid) (100 mg), L-theanine (50 mg), Magnesium (bisglycinate) (200 mg), Melatonin (non-animal source) (2.5 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Factors Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop safe to take?

Natural Factors Natural Factors Stress-Relax Nighttime Magnesium Bisglycinate 200 mg with Melatonin 2.5 mg, GABA 100 mg & L-Theanine 50 mg per Scoop, 120 g Powder = 30 Day Supply, Tropical Fruit Flavour, Magnesium Glycinate for Sleep, Sleep Aid, Gentle on the Stomach, High Absorption 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.