Source Naturals NutraSleep supplement bottle
Source Naturals

NutraSleep

What We Researched
14 active ingredients analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
74
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Niacinamide 10 mg 50%
Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg 100%
Calcium (as Calcium Carbonate, Calcium Citrate) 255 mg 26%
Magnesium (as Magnesium Citrate, Magnesium Oxide, Magnesium Taurinate) 434 mg 109%
Taurine (as Magnesium Taurinate) 877 mg
Inositol 700 mg
Gamma-Aminobutyric Acid 600 mg
Skullcap 250 mg
Passionflower 200 mg
Valerian 200 mg
Chamomile flower extract 100 mg
Bioavailability Good

Absorption Rating

  • Niacinamide Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Calcium (as Calcium Carbonate, Calcium Citrate) Fair
  • Magnesium (as Magnesium Citrate, Magnesium Oxide, Magnesium Taurinate) Good
  • Taurine (as Magnesium Taurinate) Good
  • Inositol Good
  • Gamma-Aminobutyric Acid Poor
  • Skullcap Poor
  • Passionflower Fair
  • Valerian Good
  • Chamomile flower extract Fair
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Modified Cellulose Gum
  • Magnesium Stearate
Efficacy Poor

Dosage Analysis

  • Niacinamide 10 mg Under-dosed
  • Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg Effective
  • Calcium (as Calcium Carbonate, Calcium Citrate) 255 mg Under-dosed
  • Magnesium (as Magnesium Citrate, Magnesium Oxide, Magnesium Taurinate) 434 mg High
  • Taurine (as Magnesium Taurinate) 877 mg Effective
  • Inositol 700 mg Under-dosed
  • Gamma-Aminobutyric Acid 600 mg High
  • Skullcap 250 mg Under-dosed
  • Passionflower 200 mg Under-dosed
  • Valerian 200 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 10 kcal
Total Carbohydrate 1 g 1%
Niacinamide 10 mg 50%
Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg 100%
Calcium (as Calcium Carbonate, Calcium Citrate) 255 mg 26%
Magnesium (as Magnesium Citrate, Magnesium Oxide, Magnesium Taurinate) 434 mg 109%
Sodium 10 mg 1%
Taurine (as Magnesium Taurinate) 877 mg
Inositol 700 mg
Gamma-Aminobutyric Acid 600 mg
Skullcap 250 mg
Passionflower 200 mg
Valerian 200 mg
Chamomile flower extract 100 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

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
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is Source Naturals NutraSleep a good supplement?

Source Naturals NutraSleep received a product quality score of 74/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 14 active ingredients with 10 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals NutraSleep?

Source Naturals NutraSleep contains 14 active ingredients: Calories (10 kcal), Total Carbohydrate (1 g), Niacinamide (10 mg), Vitamin B6 (as Pyridoxine Hydrochloride) (2 mg), Calcium (as Calcium Carbonate, Calcium Citrate) (255 mg), Magnesium (as Magnesium Citrate, Magnesium Oxide, Magnesium Taurinate) (434 mg), and 8 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals NutraSleep safe to take?

Source Naturals NutraSleep 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 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. No regulatory violations or FDA warning letters were found in our research.

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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.