Nature's Key Melatonin, 5 mg supplement bottle
Nature's Key

Melatonin, 5 mg

What We Researched
6 active ingredients analyzed · 9 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
87
Product Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B6 6mg 353%
Melatonin 5mg —
Bioavailability Fair

Absorption Rating

  • Vitamin B6 Fair
  • Melatonin Fair
Other Ingredients Excellent

Fillers & Additives

  • Maltose syrup
  • Sugar
  • Maltodextrin
  • Pectin
  • Citric Acid
  • Sodium Citrate
  • Natural Blueberry Flavor
  • Grape skin (for color)
  • Vegetable Oil (Contains Carnauba Wax)
Efficacy Excellent

Dosage Analysis

  • Vitamin B6 6mg Effective
  • Melatonin 5mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrate 4.8g 2%*
Total Sugars 3g
Includes 3g Added Sugars 3g 6%*
Sodium 4.9mg <1%
Vitamin B6 6mg 353%
Melatonin 5mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Maltose syrup Unknown
Sugar Generally_safe

Adds sweetness to chewable or gummy supplements.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Pectin Safe

Forms the base of gummy supplements as a vegan gelatin alternative.

Citric Acid Safe

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

Sodium Citrate Safe

Stabilizes pH and helps maintain ingredient effectiveness.

Natural Blueberry Flavor Safe

It is used to add a blueberry flavor.

Grape skin (for color) Unknown
Vegetable Oil (Contains Carnauba Wax) Generally_safe

Carnauba wax is used as a coating agent to give supplements a smooth, shiny finish.

Price Comparison

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

Brand Trust Report
Nature's Key

Related Supplements
NOW Foods L-Theanine Pure Powder, 1 oz (28 g)
NOW Foods L-Theanine Pure Powder, 1 oz (28 g)
Product 100 Brand 100
Nordic Naturals Nordic Naturals Baby's Vitamin D3 - Healthy Bones, Immune System Support, Normal Sleep Rhythms - 22.5 mL
Nordic Naturals Nordic Naturals Baby's Vitamin D3 - Healthy Bones, Immune System Support, Normal Sleep Rhythms - 22.5 mL
Product 100 Brand 98
XYMOGEN L-Theanine, 60 Vegetarian Capsules
XYMOGEN L-Theanine, 60 Vegetarian Capsules
Product 100 Brand 96
Nature's Key Multivitamin Gummies
Nature's Key Multivitamin Gummies
Product 67 Brand N/A
XYMOGEN L-Theanine, 120 Vegetarian Capsules
XYMOGEN L-Theanine, 120 Vegetarian Capsules
Product 100 Brand 96
Nature's Way L-Theanine, 200 mg Per 2-Capsule Serving, 180 Vegan Capsules
Nature's Way L-Theanine, 200 mg Per 2-Capsule Serving, 180 Vegan Capsules
Product 100 Brand 95
Frequently Asked Questions
Is Nature's Key Melatonin, 5 mg a good supplement?

Nature's Key Melatonin, 5 mg received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 6 active ingredients with 30 servings per container. Of the 9 inactive ingredients, 4 are rated safe and 0 are flagged for review.

What are the ingredients in Nature's Key Melatonin, 5 mg?

Nature's Key Melatonin, 5 mg contains 6 active ingredients: Total Carbohydrate (4.8g), Total Sugars (3g), Includes 3g Added Sugars (3g), Sodium (4.9mg), Vitamin B6 (6mg), Melatonin (5mg). Notable high-dose ingredients include Vitamin B6 at 353% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Key Melatonin, 5 mg safe to take?

Nature's Key Melatonin, 5 mg 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.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
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.