BioStacks
Source Naturals

Phosphatidyl Serine Matrix 500 mg

1 Softgel × 3/day · 60 servings · $0.42/serving

iHerbAmazon

Best for

Stress & Mood

Ingredients (2)

Sharp-PS PhosphatidylSerine Matrix

100%

Dose/day

1500 mg

Target

300–800 mg

Form

Premium

Phosphatidylserine

100%

Dose/day

300 mg

Target

300–800 mg

Form

—

Other Ingredients (8)

SorbitolSweetener

A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.

LycopeneAntioxidant

A red carotenoid pigment/antioxidant, typically sourced from tomato.

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Mixed TocopherolsAntioxidant

Natural vitamin E used as preservative

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

How to Take It

Best taken in the evening

Evening use targets nighttime cortisol; fat-soluble, so take with food.

With food
Label directs 3 servings — keep one for the evening

On the label

1 softgel three times daily, with meals.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$25.19

$50$100

Cheaper than 86% of 29 PS supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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