Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules supplement bottle
Life Extension

Quiet Sleep Melatonin, 60 Vegetarian Capsules

What We Researched
9 active ingredients analyzed · 6 inactive ingredients decoded · 3 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
82
Product Score Good
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as niacinamide ascorbate) 220 mg 244%
Niacin (as niacinamide ascorbate) 73.5 mg• 459%
Vitamin B6 (as pyridoxal 5'-phosphate) 10 mg 588%
Vitamin B12 (as methylcobalamin) 100 mcg 4167%
Calcium (as calcium carbonate, citrate) 48 mg 4%
Magnesium (as magnesium oxide) 120 mg 29%
Chromium (as ChromeMate® chromium polynicotinate) 50 mcg 143%
Melatonin (immediate release) 5 mg **
Inositol 100 mg **
Bioavailability Good

Absorption Rating

  • Vitamin C (as niacinamide ascorbate) Fair
  • Niacin (as niacinamide ascorbate) Good
  • Vitamin B6 (as pyridoxal 5'-phosphate) Fair
  • Vitamin B12 (as methylcobalamin) Good
  • Calcium (as calcium carbonate, citrate) Fair
  • Magnesium (as magnesium oxide) Poor
  • Chromium (as ChromeMate® chromium polynicotinate) Good
  • Melatonin (immediate release) Fair
  • Inositol Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose
  • Microcrystalline Cellulose
  • Dicalcium Phosphate
  • Vegetable Stearate
  • Maltodextrin
  • Silica
Efficacy Good

Dosage Analysis

  • Vitamin C (as niacinamide ascorbate) 220 mg Effective
  • Niacin (as niacinamide ascorbate) 73.5 mg• High
  • Vitamin B6 (as pyridoxal 5'-phosphate) 10 mg Effective
  • Vitamin B12 (as methylcobalamin) 100 mcg Effective
  • Calcium (as calcium carbonate, citrate) 48 mg Under-dosed
  • Magnesium (as magnesium oxide) 120 mg Under-dosed
  • Chromium (as ChromeMate® chromium polynicotinate) 50 mcg Effective
  • Melatonin (immediate release) 5 mg Effective
  • Inositol 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as niacinamide ascorbate) 220 mg 244%
Niacin (as niacinamide ascorbate) 73.5 mg• 459%
Vitamin B6 (as pyridoxal 5'-phosphate) 10 mg 588%
Vitamin B12 (as methylcobalamin) 100 mcg 4167%
Calcium (as calcium carbonate, citrate) 48 mg 4%
Magnesium (as magnesium oxide) 120 mg 29%
Chromium (as ChromeMate® chromium polynicotinate) 50 mcg 143%
Melatonin (immediate release) 5 mg **
Inositol 100 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Microcrystalline Cellulose Safe

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

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Vegetable Stearate Safe

Prevents ingredients from sticking to equipment.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$12$11 Mar 12 $14.25$13.00
iHerb
Vitacost

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

Brand Trust Report
Life Extension

Founded 1980 · Fort Lauderdale, Florida, USA · 352 products · lifeextension.com

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source

Transparency

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

Violation History

2 incidents
Prop 65 Lead2018-04-13Source
Fda Warning Making drug claims for dietary supplements, suggesting they can treat, mitigate, or prevent diseases such as breast cancer and Alzheimer's.2017-02-01Source
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Frequently Asked Questions
Is Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules a good supplement?

Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules received a product quality score of 82/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 9 active ingredients Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Life Extension, holds a brand trust score of 86/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp.

What are the ingredients in Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules?

Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules contains 9 active ingredients: Vitamin C (as niacinamide ascorbate) (220 mg), Niacin (as niacinamide ascorbate) (73.5 mg•), Vitamin B6 (as pyridoxal 5'-phosphate) (10 mg), Vitamin B12 (as methylcobalamin) (100 mcg), Calcium (as calcium carbonate, citrate) (48 mg), Magnesium (as magnesium oxide) (120 mg), and 3 more. Notable high-dose ingredients include Vitamin C at 244% DV, Niacin at 459% DV, Vitamin B6 at 588% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules safe to take?

Life Extension Quiet Sleep Melatonin, 60 Vegetarian Capsules 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 Life Extension a trustworthy supplement brand?

Life Extension receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1980 and headquartered in Fort Lauderdale, Florida, USA, the company offers 352 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Life Extension has 2 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.