BioStacks
Doctor's Best
PhosphatidylSerine with SerinAid 100 mg
1 Capsule × 3/day · 120 servings · $0.24/serving
Best for
Ingredients (1)
Phosphatidylserine
100%Dose/day
300 mg
Target
300–800 mg
Form
—
Other Ingredients (4)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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
Take one capsules 3 times daily with meals.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$28.99
Cheaper than 74% of 32 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.