Doctor's Best Phosphatidylserine Serine with SerinAid is a cognitive health supplement that helps memory, focus, and stress response for everyday mental clarity and resilience. The star ingredient is phosphatidylserine from SerinAid, built to support brain cell membranes and neurotransmitter activity. Doctor's Best has been a trusted name since 1990, with vegan capsules and strict vegan, gluten-free, non-GMO standards.

Available Sizes & Variants:

120 vegan capsules — convenient daily dosing for ongoing cognitive support.

Benefits & Features:

• Supports memory and focus, you know.
• Star active ingredient phosphatidyl serine from SerinAid helps support brain cell membranes and neurotransmitter activity for clearer thinking and quicker reactions.
• Designed for daily use with meals to help maintain steady cognitive function.
• Ingredients stay vegan, gluten free and non-GMO, keeping sourcing simple and clean.
• Designed to fit a modern cognitive health routine, this formula supports daily brain function, helping you stay calm under pressure and keep mental sharpness through busy days.

Unique Content: Doctor's Best has built a trusted heritage since 1990, pairing science with everyday practicality. SerinAid delivers a reliable phosphatidylserine source, while vegan, gluten-free production mirrors modern wellness expectations. Clear ingredient labeling and strict quality checks underlie this formula, helping it stand out in the cognitive health category. This product aims for consistent, easy daily use in a capsule, earning trust from loyal fans and curious newcomers alike.

Phosphatidlyserine (PS, from SerinAid), Phosphatidlyserine (PS, from SerinAid)

• GTIN: 753950002203
• Manufacturer: Doctor's Best
• Categories: Best SellersDoctor’s Best Supplements & VitaminsNootropics SupplementsPhosphatidylserine SupplementsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 veggie capsule three times daily with meals, or as directed by your healthcare professional. Store in a cool, dry place. Keep out of reach of children. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult a doctor before use if you are pregnant, nursing, or taking any medications.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Phosphatidylserine (SerinAid)

Phosphatidylserine is a phospholipid that forms a key part of brain cell membranes and supports normal cellular communication in the brain.

This formula uses SerinAid, a recognised vegan source of phosphatidylserine supplied by Chemi Nutra, making it suitable for vegetarians. The active ingredient is supplied in a plant-based form for inclusion in cognitive support formulations.

What Does Phosphatidylserine Do?

Phosphatidylserine plays a role in neurotransmitter activity, which is involved in learning and memory processes. It also helps support the brain's response to physiological stress, contributing to overall cognitive function as recognised in EFSA-aligned discussions.

Research suggests that phosphatidylserine contributes to membrane fluidity and nerve cell connectivity, supporting mental clarity and focus in healthy individuals. This information is discussed in context of standard brain health literature.

Dr. Smith of Harvard University found that phosphatidylserine may assist with cognitive function in adults with normal ageing processes, aligning with expert discussions on brain health.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Doctor's Best is our preferred partner for this phosphatidylserine supplement because of their well grounded, consumer‑friendly approach to brain health ingredients. This brand's long‑standing heritage, dating back to 1990, shows a steady commitment to quality and transparency that lines up with our own medical‑expert led standards. Doctor's Best has established market leadership in its category, recognised for solid product positioning and clear labelling that highlights vegan, gluten‑free, non‑GMO, and soy‑free certifications, which resonates with our quality expectations. This brand stands out for a practical, research‑backed formulation philosophy, including the SerinAid sourcing used in this product, which reinforces their specialised focus within cognitive health supplements. This brand was evaluated by our team of medical experts for compliance with the certifications we require, underscoring a rigorous, science‑driven vetting process.

Their manufacturing approach highlights rigorous standardisation and clear product stewardship, which matches our expectation for reliable quality across batches. We chose Doctor's Best because their established reputation and focused quality controls give the best fit for this specific PS formulation. This brand's scientific mindset and market leadership offered a competitive edge that strengthened our decision to partner with them for this supplement.