Natural Stacks Sleep Stack, 2 Bottles, 15 Vegetarian Capsules Each supplement bottle
Natural Stacks

Sleep Stack, 2 Bottles, 15 Vegetarian Capsules Each

What We Researched
1 active ingredient analyzed · 8 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
80
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium(from 1000 mg Magtein™ Magnesium L-Threonate)¹(from 690 mg Magnesium Glycinate)(from 630 mg Magnesium Taurate) 200 mg 48%
Bioavailability Excellent

Absorption Rating

  • Magnesium(from 1000 mg Magtein™ Magnesium L-Threonate)¹(from 690 mg Magnesium Glycinate)(from 630 mg Magnesium Taurate) Good
Other Ingredients Excellent

Fillers & Additives

  • Magtech® magnesium
  • Hypromellose (Capsule)
  • Silica
  • Microcrystalline Cellulose
  • Ascorbyl Palmitate
  • GABA brain food™:hypromellose (capsule)
  • Ascrbyl palmitate
  • Silica
Efficacy Excellent

Dosage Analysis

  • Magnesium(from 1000 mg Magtein™ Magnesium L-Threonate)¹(from 690 mg Magnesium Glycinate)(from 630 mg Magnesium Taurate) 200 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Magnesium(from 1000 mg Magtein™ Magnesium L-Threonate)¹(from 690 mg Magnesium Glycinate)(from 630 mg Magnesium Taurate) 200 mg 48%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Magtech® magnesium Unknown
Hypromellose (Capsule) Safe

It is used as a material for making vegetarian capsules.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Microcrystalline Cellulose Safe

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

Ascorbyl Palmitate Safe

Prevents oxidation and extends shelf life of oil-based supplements.

GABA brain food™:hypromellose (capsule) Unknown
Ascrbyl palmitate Unknown
Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$25$24$23$22$21 Mar 12 $23.00
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 Stacks

Founded 2013 · Seattle, WA, United States · 29 products · naturalstacks.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Verified Source

Violation History

1 incident
Prop 65 Benzene2021-08-31Source
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Frequently Asked Questions
Is Natural Stacks Sleep Stack, 2 Bottles a good supplement?

Natural Stacks Sleep Stack, 2 Bottles, 15 Vegetarian Capsules Each received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 5 servings per container. Of the 8 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Natural Stacks, holds a brand trust score of 80/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Natural Stacks Sleep Stack, 2 Bottles?

Natural Stacks Sleep Stack, 2 Bottles contains 1 active ingredients: Magnesium(from 1000 mg Magtein™ Magnesium L-Threonate)¹(from 690 mg Magnesium Glycinate)(from 630 mg Magnesium Taurate) (200 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Stacks Sleep Stack, 2 Bottles safe to take?

Natural Stacks Sleep Stack, 2 Bottles, 15 Vegetarian Capsules Each 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 Stacks a trustworthy supplement brand?

Natural Stacks receives a brand trust score of 80/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2013 and headquartered in Seattle, WA, United States, the company offers 29 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Natural Stacks has 1 historical regulatory incident 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.