Phosphatidylserine (formerly Iso-Phos)

Thorne Phosphatidylserine (Formerly Iso-Phos) – Cognitive, Stress & Neurological Support

Thorne Phosphatidylserine, formerly known as Iso-Phos, provides a high-quality phospholipid that plays a critical role in brain cell structure, cognitive performance, and stress regulation*. Phosphatidylserine is a major component of neuronal cell membranes and is essential for healthy communication between brain cells.*

Phosphatidylserine supports memory, focus, and mental clarity by helping maintain the integrity and fluidity of brain cell membranes, which is necessary for efficient neurotransmitter signaling.* Adequate levels are especially important for individuals experiencing age-related cognitive changes or increased mental demands.*

In addition to cognitive support, phosphatidylserine has been shown to help regulate the body’s stress response by supporting healthy cortisol levels already within the normal range.* This makes it beneficial for individuals dealing with mental fatigue, chronic stress, or high physical or emotional demands.*

Phosphatidylserine also plays a role in nerve cell function and cellular signaling throughout the body, supporting overall neurological health.* Because phosphatidylserine levels can decline with age, supplementation helps support optimal brain and nervous system function over time.*

Key Benefits

• Supports memory, learning, and cognitive performance*

• Promotes mental focus and clarity*

• Helps regulate the body’s stress response*

• Supports healthy cortisol balance*

• Maintains brain cell membrane integrity*

• Supports neurological and nervous system health*

• Formerly known as Iso-Phos

• Foundational support for brain health*

Why Choose Thorne Phosphatidylserine?

Thorne is recognized for its commitment to purity, research-driven formulations, and clinical-grade quality. Thorne Phosphatidylserine delivers a clean, bioavailable form of this essential phospholipid without unnecessary additives, making it ideal for long-term cognitive and neurological support.

Manufactured by Thorne, a trusted leader in science-backed supplementation.

Ideal For

• Brain and cognitive support*

• Stress and adrenal balance*

• Individuals experiencing mental fatigue*

• Foundational neurological health support*

*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.