NOW Phosphatidyl Serine 100 mg supplement bottle
NOW

Phosphatidyl Serine 100 mg

What We Researched
4 active ingredients analyzed · 4 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
87
Product Score Good
89
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Phosphatidyl Serine (as Soy) 100 mg
Ginkgo extract (as Ginkgoflavonglycosides, Terpene Lactones) 60 mg
Bioavailability Excellent

Absorption Rating

  • Phosphatidyl Serine (as Soy) Good
  • Ginkgo extract (as Ginkgoflavonglycosides, Terpene Lactones) Good
Other Ingredients Excellent

Fillers & Additives

  • Softgel Capsule
  • Soybean Oil
  • Glycerin
  • Mixed Tocopherols
Efficacy Fair

Dosage Analysis

  • Phosphatidyl Serine (as Soy) 100 mg Effective
  • Ginkgo extract (as Ginkgoflavonglycosides, Terpene Lactones) 60 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 5 kcal
Total Fat 0.5 g 1%
Phosphatidyl Serine (as Soy) 100 mg
Ginkgo extract (as Ginkgoflavonglycosides, Terpene Lactones) 60 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Softgel Capsule Unknown
Soybean Oil Safe

Dissolves fat-soluble ingredients. Contains soy allergen.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Mixed Tocopherols Safe

Prevents oxidation and rancidity in oil-based supplements.

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
NOW

Founded 1968 · Bloomingdale, Illinois, USA · 53 products · nowfoods.com

Certifications

5 certifications
Informed Sport Verified Source
Npa Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source
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Frequently Asked Questions
Is NOW Phosphatidyl Serine 100 mg a good supplement?

NOW Phosphatidyl Serine 100 mg received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 4 active ingredients Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, NOW, holds a brand trust score of 89/100 with 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in NOW Phosphatidyl Serine 100 mg?

NOW Phosphatidyl Serine 100 mg contains 4 active ingredients: Calories (5 kcal), Total Fat (0.5 g), Phosphatidyl Serine (as Soy) (100 mg), Ginkgo extract (as Ginkgoflavonglycosides, Terpene Lactones) (60 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Phosphatidyl Serine 100 mg safe to take?

NOW Phosphatidyl Serine 100 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.

Is NOW a trustworthy supplement brand?

NOW receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 53 products in their lineup. They hold 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project. 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.