Phosphatidyl Serine 100 mg

product on market Capsule NOW 🟢 Safety: 100/100
Brand: NOW
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Veg. Capsule(s) Serving Size
Other Combinations Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

Phosphatidyl Serine
100 mg
100 mg
✅ Within RDA (0.2× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 100mg UL 3500mg
50 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 50mg

Other Ingredients

Cellulose powder Cellulose Silica Magnesium Stearate

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (78% of products) Nutrient (22% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Kosher Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Usage: Take 1 capsule 1 to 3 times daily, preferably with food.

⚠️ Warnings & Precautions

Contains soy (phosphatidyl serine).

Not manufactured with wheat, gluten, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Do Not Eat Freshness Packets. Keep in Bottle.

Caution: For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

🧪 Formulation Notes

Contains soy (phosphatidyl serine).

Not manufactured with wheat, gluten, milk, egg, fish, shellfish or tree nut ingredients.

Vegetarian/Vegan

Additional Information

General Health

Family owned since 1968.

Store in a cool, dry place after opening.

Please Recycle.

GMP QUALITY ASSURED

Phosphatidyl Serine is a major structural component of neural membranes where it assists in the conduction of electrical impulses and facilitates the activity of neurotransmitters involved in learning, memory, and mood.

Natural color variations may occur in this product.

CODE 2379 V8

Cognitive Health*

~ Supports Memory and Brain Function ~ Promotes Intercellular Communication*

Triangle K

Product Details

UPC / SKU 7 33739 02379 7
DSLD Entry Date 2016-02-23
Product Type Other Combinations
Form Capsule
Brand NOW
DSLD ID 56909
Data Updated 2026-04-11

Research Evidence

32 Research Sources
50 Avg Quality Score
19 Rct
7 Meta Analysis
3 Clinical Trial
2 Other
1 Systematic Review
B Greater Choline-Containing Compounds and Myo-inositol in Treatment-Resistant Versus Responsive Schizophrenia: A 1H-Magnetic Resonance Spectroscopy Meta-analysis
Meta Analysis Biological psychiatry. Cognitive neuroscience and neuroimaging 2024
PubMed DOI
B Inositol for Polycystic Ovary Syndrome: A Systematic Review and Meta-analysis to Inform the 2023 Update of the International Evidence-based PCOS Guidelines
Meta Analysis The Journal of clinical endocrinology and metabolism 2024
PubMed DOI
B Antenatal dietary supplementation with myo-inositol for preventing gestational diabetes
Meta Analysis The Cochrane database of systematic reviews 2023
PubMed DOI Cochrane
B Effectiveness of inositol, metformin and their combination in women with PCOS undergoing assisted reproduction: systematic review and meta-analysis
Meta Analysis Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology 2022
PubMed DOI
B Effects of myo-inositol vs. metformin on hormonal and metabolic parameters in women with PCOS: a meta-analysis
Meta Analysis Irish journal of medical science 2023
PubMed DOI
B Inositol for subfertile women with polycystic ovary syndrome
Meta Analysis The Cochrane database of systematic reviews 2018
PubMed DOI
B Treatment of lean PCOS teenagers: a follow-up comparison between Myo-Inositol and oral contraceptives
Rct European review for medical and pharmacological sciences 2021
PubMed DOI
B The 40:1 myo-inositol/D-chiro-inositol plasma ratio is able to restore ovulation in PCOS patients: comparison with other ratios
Rct European review for medical and pharmacological sciences 2019
PubMed DOI
C Investigating the effect of combined use of selenium and Myo-inositol supplements on thyroid function and autoimmune characteristics in thyroid disorders: a systematic review and meta-analysis
Meta Analysis Expert review of endocrinology & metabolism 2024
PubMed DOI
C Myo-inositol supplementation to prevent gestational diabetes in overweight non-obese women: bioelectrical impedance analysis, metabolic aspects, obstetric and neonatal outcomes - a randomized and open-label, placebo-controlled clinical trial.
Rct International journal of food sciences and nutrition
PubMed DOI
View all evidence for Inositol →

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