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Jarrow Formulas PS100, Phosphatidylserine, 100 mg supplement bottle
Jarrow Formulas

PS100, Phosphatidylserine, 100 mg Review

What We Researched
1 active ingredient analyzed · 12 inactive ingredients decoded · 7 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
98
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Phosphatidylserine (PS) 100 mg †
Bioavailability Excellent

Absorption Rating

  • Phosphatidylserine (PS) Good
Other Ingredients Excellent

Fillers & Additives

  • Silicified Microcrystalline Cellulose
  • Mixed Tocopherols
  • Vegetable Magnesium Stearate
  • Ascorbyl Palmitate
  • Bovine Gelatin
  • Cellulose
  • Magnesium Stearate
  • Starch
  • Modified Food Starch
  • Silica
  • Silicon Dioxide
  • Vegetable Capsule
Efficacy Excellent

Dosage Analysis

  • Phosphatidylserine (PS) 100 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Phosphatidylserine (PS) 100 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Silicified Microcrystalline Cellulose Generally_safe

It is used as a filler and flow agent in supplements.

Mixed Tocopherols Safe

Prevents oxidation and rancidity in oil-based supplements.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Ascorbyl Palmitate Safe

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

Bovine Gelatin Safe

Forms capsule shells. Sourced from bovine (cow) collagen.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Starch Generally_safe

It is used as a filler, binder, or thickener.

Modified Food Starch Generally_safe

It is used as a filler, binder, or thickener in supplements.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Vegetable Capsule Safe

It is used as a vegetarian alternative to gelatin capsules.

Brand Trust Report
Jarrow Formulas

Founded 1977 · Los Angeles, California, USA · 138 products · jarrow.com/

Certifications

7 certifications
Consumerlab Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Non Gmo Project Source available Primary evidence
Usda Organic Source available Primary evidence
Vegan Certified Source available Primary evidence
IGEN Non-GMO Tested Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence

Violation History

2 incidents
Recall Liquid L-Carnitine2018-01-15 Source available Primary source
Prop 65 Lead2017-09-07 Source available Primary source
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Frequently Asked Questions
Is Jarrow Formulas PS100, Phosphatidylserine a good supplement?

Jarrow Formulas PS100, Phosphatidylserine, 100 mg 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 All 12 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Jarrow Formulas, holds a brand trust score of 98/100.

What are the ingredients in Jarrow Formulas PS100, Phosphatidylserine?

Jarrow Formulas PS100, Phosphatidylserine contains 1 active ingredients: Phosphatidylserine (PS) (100 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Jarrow Formulas PS100, Phosphatidylserine safe to take?

GoodSupp reviewed the inactive-ingredient data available for Jarrow Formulas PS100, Phosphatidylserine, 100 mg. All 12 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Jarrow Formulas a trustworthy supplement brand?

Jarrow Formulas receives a brand trust score of 98/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Los Angeles, California, USA, the company offers 138 products in their lineup. Note: Jarrow Formulas 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 — read our methodology. 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.