Phosphatidylserine

Amino Acids & Compounds

Phosphatidylserine is a phospholipid naturally found in high concentrations in brain cell membranes, where it plays a key role in cell signaling, neurotransmitter release, and synaptic function. Research suggests that supplemental phosphatidylserine may support cognitive performance, particularly in areas of memory, attention, and mental processing speed, with some studies exploring its potential benefits for age-related cognitive decline and stress management by helping to moderate cortisol responses. Studies have also investigated its role in supporting focus and attention in younger populations, including children with attention-related challenges. Originally derived from bovine brain tissue, modern supplements typically use soy-derived or sunflower-derived phosphatidylserine, which offer a plant-based alternative with a similar phospholipid profile and a well-regarded safety record in clinical research.

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What the research says

Common dosages

These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.

Form Dose range Frequency Studied for Source
Capsule 200–400 mg Daily ADHD support in children and adolescents Based on RCTs examining attention and behavior in ADHD populations
Capsule 100 mg Three times daily Cognitive function and memory in older adults Common in clinical trials studying age-related cognitive decline
Capsule 300–800 mg Daily Stress relief and cortisol reduction Based on RCTs measuring neuroendocrine stress response
Powder 200–600 mg Daily Exercise-induced stress and cognitive performance in athletes Common in clinical trials with physically active populations

Common supplement forms

Soy-derived PS Sunflower-derived PS
Medical Disclaimer: Noyemi provides information from published research for educational purposes only. This content is not medical advice and does not replace consultation with a qualified healthcare provider. Always consult your doctor before starting, stopping, or changing any supplement regimen, especially if you take medications or have existing health conditions.