Phosphatidyl Serine Complex — 500 mg, Softgels, 30 — Supports Cognitive Function & Memory*
LifeSource Vitamins Phosphatidyl Serine Complex delivers clinically researched phosphatidylserine (PS) with complementary phospholipids to help maintain memory, focus, and a healthy stress response. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for identity, potency & purity.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits
✓ Memory Support — Soy-derived PS (300 mg/day) improved delayed recall and memory in older adults with memory complaints (RCT).
NIH/PubMed — Kato-Kataoka, 2010
✓ Cognitive Function — PS (300 mg/day) improved learning and memory test scores in adults with age-associated memory impairment.
NIH/PubMed — Crook, 1991
✓ Stress Response — PS (400 mg/day) lowered cortisol responses during exercise stress testing.
NIH/PubMed — Hellhammer, 2004
✓ Attention & Focus — PS improved attention and impulsivity measures in children with attention challenges (open-label trial).
NIH/PubMed — Hirayama, 2012
✓ Mood & Well-Being — PS (200–400 mg/day) supported positive mood states in stressed adults.
NIH/PubMed — Benton, 1999
✓ Brain Cell Health — PS helps maintain cell membrane fluidity and neurotransmitter function in the brain.
NIH/PubMed — Glade, 2015
✓ Healthy Aging — Reviews show PS supplementation supports cognitive performance across aging populations.
NIH/PubMed — Glade, 2015
Additional / Promising Evidence
✓ May improve exercise capacity and reduce muscle soreness when taken before training.
NIH/PubMed — Monteleone, 1992
✓ Preliminary data suggest PS may support mood stability in older adults.
NIH/PubMed — Benton, 1999
✓ Pilot studies show PS may enhance reaction time and accuracy in athletes.
NIH/PubMed — Fahey, 2000
✓ Evidence suggests PS may improve executive function under fatigue.
NIH/PubMed — Fahey, 2000
University-Led & Academic Studies
✓ PS (300 mg/day) improved delayed recall and memory in older adults with memory complaints (RCT).
NIH/PubMed — Kato-Kataoka, 2010
✓ PS (300 mg/day) improved learning and memory test scores in adults with age-associated memory impairment.
NIH/PubMed — Crook, 1991
✓ PS (400 mg/day) lowered cortisol responses during exercise stress testing.
NIH/PubMed — Hellhammer, 2004
Global Evidence & Reviews
✓ NCCIH — Phosphatidylserine overview and cognition research summary.
NIH/NCCIH
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
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Phosphatidylserine (PS) — Clinically studied for memory, cognition, and stress response.*
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Phosphatidylcholine — Supports acetylcholine synthesis and brain cell communication.*
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Phosphatidylethanolamine — Maintains structural integrity of neuronal membranes.*
Brief Benefit Bullets
- Supports memory and cognitive function*
- Helps reduce stress-related cortisol response*
- Promotes focus and attention*
- Encourages mood stability under stress*
- Supports brain cell membrane integrity*
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3rd-party lab tested for purity & potency
Suggested Use
Take 1 softgel up to three times daily with meals, or as directed by your healthcare professional. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
• Serving Size — 1 softgel
• Servings Per Container — 30
• Form — Softgels
• Phosphorus — 10 mg (1% DV)
• Potassium — 3 mg (<1% DV)
• Phosphatidylserine complex — 500 mg*
• Phosphatidylcholine — 55 mg*
• Phosphatidylethanolamine — 20 mg*
• Phosphatidylinositol — 10 mg*
• Linoleic acid — 85 mg*
• Oleic acid — 15 mg*
• Palmitic acid — 27 mg*
• Stearic acid — 6 mg*
• Capric acid — 51 mg*
• Caprylic acid — 120 mg*
• Free From — Non-GMO, gluten-free, dairy-free, wheat-free, artificial colors*
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Phosphatidyl Serine Complex — 500 mg softgels for memory, focus & stress response. Non-GMO, 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
