About Doctor’s Best – Phosphatidylserine with SerinAid®, 100mg
Doctor’s Best Phosphatidylserine delivers 100 mg of high-quality phosphatidylserine (PS) per capsule, sourced from SerinAid® — a well-researched, standardised phosphatidylserine ingredient derived from soy. Phosphatidylserine is a naturally occurring phospholipid that is found in cell membranes throughout the body, with particularly high concentrations in brain tissue. Each bottle contains 120 veggie capsules, providing a generous 40-day supply at the recommended dose of three capsules per day.
Doctor’s Best uses SerinAid®, a branded and extensively studied form of phosphatidylserine, to ensure consistent quality and potency in every capsule. The formula is encapsulated in a vegetarian hypromellose capsule and is free from gluten, making it suitable for a broad range of dietary preferences. This product is produced in the United States to rigorous quality standards.
Each capsule contains only the SerinAid® phosphatidylserine alongside minimal excipients, without unnecessary additives. The clean formulation and vegan-friendly capsule shell make this product a straightforward choice for those seeking a pure phosphatidylserine supplement.
Nutrition Facts
| Nutrient | Per Serving (1 Veggie Capsule) |
|---|---|
| PhosphatidylSerine (PS, from SerinAid®) | 100 mg * |
* No established daily reference value.
Ingredients
Phosphatidylserine (PS, from SerinAid®) 100 mg. Other Ingredients: Microcrystalline cellulose, hypromellose (vegetarian capsule), silicon dioxide, magnesium stearate (vegetable source).
Capsule shell: Hypromellose (vegetarian capsule)
Usage & Dosage
Take 1 capsule 3 times daily with food, or as recommended by a nutritionally-informed physician.
Warnings
Keep out of reach of children. As with all dietary supplements, consult your healthcare professional before use. Consult your healthcare provider before use if you are taking any prescription medications or if you have a medical condition. Women who are pregnant or nursing should also consult a physician before using this product.
Allergen Information
Contains Soy (from SerinAid®/phosphatidylserine ingredient). Gluten Free.
Storage
Store in a cool, dry place.
Dietary Information
- Vegan
- Vegetarian
- Gluten Free

Glycine 500mg – Swanson | 60 Vcaps
Fenugreek 550mg – Osavi | 120 Vcaps
Schizandra Extract 500mg – 60 Caps | Swanson
Black Cumin Seed Oil – 60 Softgels | Life Extension
Himalaya Ayurveda Clear Skin Soap – 125g
Osavi Ashwagandha + Rhodiola & Ginseng – 60 Vegan Caps
Himalaya Almond Moisturizing Soap – 75g
Full Spectrum Korean Red Ginseng Root, 400mg – 90 Caps | Swanson
Himalaya Nourishing Lip Balm – 4.5g
BetterYou Magnesium Skin Body Lotion – 180 ml
Marine Collagen Wild Cod, Grapefruit – Osavi | 360g
Doctor's Best Collagen Types 1 & 3 with Peptan® and Vitamin C, 500 mg – 240 Caps
Himalaya Detoxifying Charcoal Face Wash – 150 ml
Osavi Omega-3 Fish Oil Molecularly Distilled, 1000mg (Lemon) – 180 Softgels
NOW Foods Essential Oil – Frankincense Oil 20% Oil Blend – 30 ml
Swanson Hydrolyzed Fish Collagen Type I – 400 mg | 60 Capsules
Arginine & Ornithine 500/250 mg – NOW Foods | 100 Veg Capsules
Full Spectrum Turmeric 720mg – 100 Caps | Swanson
NeoCell Collagen 2 Joint Complex – 120 Capsules
Phosphatidylserine 100mg – Swanson | 30 Softgels 
