Extra Strength Phosphatidyl Serine 300 mg

by NOW · softgel capsule · 50 softgels

  • On the market (NIH)
  • UPC 7 33739 02392 6
  • DSLD label 72424
  • Serving 1 softgel

Extra Strength Phosphatidyl Serine 300 mg by NOW lists one ingredient: 300 mg of phosphatidyl serine per serving of 1 softgel. Its current label entered the NIH Dietary Supplement Label Database on March 24, 2017.

What is in Extra Strength Phosphatidyl Serine 300 mg?

Each row as the label prints it, per serving of 1 softgel. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Extra Strength Phosphatidyl Serine 300 mg: Supplement Facts rows against the market (DSLD label 72424, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Total Fat1 g1%Fat (unspecified) in Extra Strength Phosphatidyl Serine 300 mg against 11,965 products1 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.1 g

56% of 11,965 products listing fat (unspecified) give more (median 1.5 g).

Phosphatidyl Serineas SoyPhosphatidyl Serine (Form: from Soy)300 mgPhosphatidylserine in Extra Strength Phosphatidyl Serine 300 mg against 641 products300 mg per serving; the middle half of products list 50 mg to 150 mg, the median 100 mg.300 mg

Higher than 84% of 641 products listing phosphatidylserine (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 72424 (entered March 24, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Usage: Take 1 softgel daily with a meal.
Warnings
Keep out of reach of children.
Do not eat freshness packet. Keep in bottle.
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Not manufactured with yeast, wheat, gluten, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Not manufactured with yeast, wheat, gluten, corn, milk, egg, fish, shellfish or tree nut ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 72424.

What else is on the label?

Other ingredients: MCT Oil, Softgel Capsule, Sunflower Lecithin, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Quality Assured.

How many labels does Extra Strength Phosphatidyl Serine 300 mg have?

One label is on file, entered on March 24, 2017.

  1. Label 72424 (current) Entered March 24, 2017 · on the market · 50 softgels · UPC 7 33739 02392 6

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?