Thorne Phosphatidylserine (60 Capsules) - 100mg supplement for cortisol management, stress, and cognitive support.
Thorne Phosphatidylserine (60 Capsules) - 100mg supplement for cortisol management, stress, and cognitive support.
Thorne Phosphatidylserine (60 Capsules) - 100mg supplement for cortisol management, stress, and cognitive support.

Thorne Research

Phosphatidylserine (formerly Iso-Phos)

$68.00

SIZE: 60 Capsules

*Free shipping applies to orders shipped within the Lower 48 States.


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SKU: T15023 Categories: , , Tags: , , Product Brand:

The Promise

Product identity and formulation Phosphatidylserine isolate in a vegetarian capsule

Thorne Phosphatidylserine supplies a concentrated PS isolate in a cellulose-based capsule with minimal excipients.

What it is

Phosphatidylserine (PS) isolate — a brain phospholipid important for cell membranes.

Principal ingredient & amount

Each capsule contains 100 mg Phosphatidylserine Isolate.

Formulation & delivery

Vegetarian hypromellose (cellulose-derived) capsule; excipients: cellulose powder, microcrystalline cellulose, silicon dioxide.

Quality & certification

NSF Certified for Sport®; 60 capsules per bottle.

Why It Works

Distinct formulation facts Specific composition and supported physiological roles

Concrete formulation details and the biologic roles linked to PS as stated for this product.

01

Isolate form

Provided as a Phosphatidylserine isolate rather than a mixed phospholipid blend.

02

Dose per capsule

Standardized single-capsule dose of 100 mg supports consistent intake.*

03

Membrane component

PS is described as a key phospholipid for cell membrane structure and neuron communication.

04

Stress-hormone support*

Product information states PS can modulate cortisol/adrenal output and help normalize evening cortisol levels.*

Reviews

Customer Reviews

Your Journey

How to use, store, and consider safety Clear serving, format, and safety directions from the label

Label directions, precautions, and product format to follow and discuss with your practitioner as needed.

Serving

Suggested use

Take 1 capsule two to three times daily or as recommended by your health‑care practitioner.

Format & supply

Capsule format

Hypromellose (cellulose-derived) vegetarian capsule; 60 servings per container.

Warnings

Allergy & contraindication

Contraindicated with a history of hypersensitivity to any ingredient; contains ingredient derived from soy.

Precautions & interactions

Pregnancy, bleeding, and drug interactions

If pregnant, consult your health‑care practitioner. Use caution or avoid with anticoagulant therapy; may have additive effects with acetylcholinesterase inhibitors or cholinergic medications.

Product education

Phosphatidylserine: A Brain Phospholipid for Cortisol, Stress, and Cognitive Support*

Thorne’s Phosphatidylserine is a high-quality supplement featuring a key phospholipid that is vital for the structure and function of every cell in the body, particularly in the brain. Phosphatidylserine (PS) plays a crucial role in supporting healthy cognitive function, memory, and focus. It is also a premier nutrient for managing the body’s stress response by helping to normalize cortisol levels. This makes it an exceptional choice for students, professionals, athletes, and anyone seeking to enhance mental clarity and promote a balanced response to daily stress.*

How It Works: Balancing Cortisol and Supporting Brain Cells*

Phosphatidylserine’s benefits stem from its integral role in cell membrane health and its ability to modulate the body’s primary stress hormone, cortisol.*

Promoting a Healthy Stress Response
During periods of stress, the adrenal glands release cortisol. While essential in the short term, chronically elevated cortisol can negatively impact sleep, mood, and cognitive function. Phosphatidylserine has been clinically shown to help moderate the body’s stress response and blunt adrenal output of cortisol. This can help lower evening cortisol levels, which supports more restful sleep and promotes a calmer, more relaxed state of mind during the day.*

Enhancing Cognitive Function
As a crucial component of nerve cell membranes, PS is essential for neuron communication and the transmission of brain signals. It supports the production of key neurotransmitters like acetylcholine, which is linked to memory and learning. By supporting overall brain cell health and facilitating neurotransmitter signaling, supplemental PS helps to maintain healthy memory, focus, and concentration, particularly as a part of a healthy aging regimen.*

  • Supports healthy cognitive function, including memory, focus, and concentration*
  • Helps moderate the body’s stress response and normalize cortisol levels*
  • Promotes a calm, relaxed state of mind and supports restful sleep*
  • A key nutritional component for healthy brain cell membranes
  • NSF Certified for Sport®, trusted for purity and safety

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take 1 capsule two to three times daily or as recommended by your health-care practitioner.
Serving Size: One Capsule
Servings Per Container: 60
Ingredient Amount %DV
Phosphatidylserine Isolate 100 mg **
Other ingredients: Cellulose Powder, Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Silicon Dioxide.
**Daily Value (DV) not established.
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. Contains ingredient derived from soy.
PREGNANCY If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS Phosphatidylserine has been shown to have a blood-thinning effect and should be used with caution or avoided in individuals on anticoagulant therapy. Concurrent use of phosphatidylserine with an acetylcholinesterase inhibitor or a cholinergic medication might have an additive effect.

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