Phosphatidylserine (PS)

Nootropic

Also known as: PS, Serine phospholipid, Phosphatidylserine, Soy/sunflower phosphatidylserine, Phosphatidyl serine

Grade A

💊 100-300 mg daily🎯 9 primary uses🔗 3 synergies⚠️ Review warnings

Overview

Phospholipid that may blunt excessive cortisol response, particularly useful for overtraining.

Primary Uses

MemoryFocusStress/cortisolBrain cell healthCortisol reductionCognitive supportExercise recoveryStressOvertraining

Dosage

Typical range

100-300 mg daily

Timing

With meals

With food

Yes

Dose Tiers

Moderate

100 mg three times daily

Optimal

300 mg/day

Therapeutic

300-800 mg/day

Upper Limit

Avoid with anticholinergics

Duration

Benefits develop over weeks

Special Populations

Cognitive decline, athletes

Mechanism of Action

• Critical membrane component
• Supports neurotransmitter release
• May blunt cortisol response

Evidence Quality

Evidence Grade A

FDA-qualified health claim for cognitive function

Safety & Contraindications

Serious Warnings

• None

Contraindications

• None

Common Side Effects

• Mild GI upset
• Insomnia

Pregnancy & Breastfeeding

Consult healthcare provider

Liver & Kidney Notes

Safe

Interactions

💊 Medications

• Blood thinners (minor)
• Anticholinergics

🧪 Supplements

• Works with omega-3s, Ginkgo

🍽️ Food & Alcohol

• No interactions

Stacking & Synergies

Pairs Well With

Omega-3sGinkgoAlpha-GPC

Avoid Combining With

None

Best Goal Synergies

MemoryCortisol management

Buying Guide

What to Look For

• Sharp-PS or quality brand

Standardization Markers

PS contentSource specified

Adulteration risk

Low

Practical Notes

• FDA allows qualified health claim
• Sunflower-derived for soy allergies
• Sunflower-derived for soy allergy
• Pre-workout for exercise cortisol
• Higher doses (400-800mg) for cortisol
• Before training or evening
• Sunflower-derived for soy-free

Frequently Asked About Phosphatidylserine (PS)

How much Phosphatidylserine (PS) should I take?

The typical effective range is 300 mg/day. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.

When is the best time to take Phosphatidylserine (PS)?

With meals. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.

Should I take Phosphatidylserine (PS) with food?

Yes.

Does Phosphatidylserine (PS) interact with medications?

Yes — known interactions include Blood thinners (minor) and Anticholinergics. If you take any prescription medication, talk to your doctor or pharmacist before starting Phosphatidylserine (PS).

What does Phosphatidylserine (PS) pair well with?

Phosphatidylserine (PS) stacks well with Omega-3s, Ginkgo, and Alpha-GPC — these combinations either improve absorption or work synergistically toward common goals.

Who should not take Phosphatidylserine (PS)?

Phosphatidylserine (PS) should be avoided or used with caution by people with None. Pregnant or breastfeeding women should consult a healthcare provider before use.

What are the side effects of Phosphatidylserine (PS)?

Most people tolerate Phosphatidylserine (PS) well. The most commonly reported side effects are Mild GI upset and Insomnia. Side effects are usually dose-dependent — lowering the dose often resolves them.

Related Guides

In-depth guides covering Phosphatidylserine (PS) — protocols, comparisons, and use cases.

The Nootropics Guide↗

Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.