Phosphatidylserine (PS) belongs to a special category of fat-soluble substances called phospholipids, which are essential components of cell membranes. PS is found in high concentrations in the brain.‡

Research has shown that as we age, the amount of PS in our brain cells begins to decline. While PS is found in dietary sources such as dairy products and organ meats, intake of such products generally decreases as we age. Supplementation with Phosphatidyl Serine can increase dietary intake of PS and help restore levels of PS in our brain cells.‡

Phosphatidyl Serine has been widely studied as a cognitive health ingredient. Numerous studies have shown that phosphatidyl serine helps improve brain functions that decline with age. Specifically, PS has been shown to improve memory retention and support mental concentration. Furthermore, PS is the only cognitive health ingredient for which the FDA permits use of a qualified health claim.‡

Progressive Labs' logo, text, trademarks, graphics, and photo images are the property of Progressive Laboratories, Inc. and are used with permission. Copyright © 2026.

*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.progressivelabspro.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.