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Phosphatidylserine

A phospholipid is not a label percentage

Phosphatidylserine is a phospholipid found in cell membranes and sold in supplements. Preparations can differ in source and concentration. A phosphatidylserine complex may include other material, so its headline weight is not necessarily the amount of phosphatidylserine.

Three checks before comparing preparations

Identify the source, the amount of phosphatidylserine itself, and whether other ingredients were supplied with it. Historical bovine-derived preparations, soy-derived PS, and combinations are separate interventions. The memory article examines those differences and the human outcomes; this page is a guide to identifying the ingredient.

Read a complex weight literally

Advanced Memory Formula lists 150 mg of Phosphatidylserine Complex from soy lecithin. That is a weight for the complex, without a verified pure-PS amount. Use the formula review for the full label and the dedicated article for trial interpretation; neither provides a basis for equating that line with 150 mg of pure PS.

Related research

Choose a specific evidence question below. Formula reviews provide label context; they do not establish that the complete product reproduces an ingredient study.

Related ingredients

Follow the ingredient definitions to compare roles and preparations, rather than treating them as interchangeable products.

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Products containing it

Product inclusion indicates a catalog relationship, not an efficacy endorsement.