PlainVitamins

Cognitive Aminos

by Pure Encapsulations · capsule · 120 capsules

  • On the market (NIH)
  • UPC 7 66298 01783 9
  • DSLD label 293938
  • Serving 2 capsules
  • 60 servings

Cognitive Aminos by Pure Encapsulations lists 5 ingredients, 5 with an amount per serving of 2 capsules, such as 250 mg of DL-phenylalanine, 250 mg of taurine, 250 mg of L-tyrosine and 250 mg of acetyl-L-carnitine. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Cognitive Aminos?

Each row as the label prints it, per serving of 2 capsules. 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).

Cognitive Aminos: Supplement Facts rows against the market (DSLD label 293938, January 2026 release)
IngredientAmount% DVAmong products listing it
DL-PhenylalanineFree-Form250 mgDL-phenylalanine in Cognitive Aminos against 155 products250 mg per serving; the middle half of products list 135 mg to 500 mg, the median 300 mg.250 mg

65% of 155 products listing DL-phenylalanine give more (median 300 mg). Per day at the most servings: 500 mg.

TaurineFree-Form250 mgTaurine in Cognitive Aminos against 2,337 products250 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.250 mg

62% of 2,337 products listing taurine give more (median 500 mg). Per day at the most servings: 500 mg.

L-TyrosineFree-Form250 mgTyrosine in Cognitive Aminos against 1,680 products250 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.250 mg

64% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 500 mg.

Acetyl-L-CarnitineFree-Form250 mgAcetyl L-Carnitine in Cognitive Aminos against 933 products250 mg per serving; the middle half of products list 200 mg to 525 mg, the median 500 mg.250 mg

64% of 933 products listing acetyl L-carnitine give more (median 500 mg). Per day at the most servings: 500 mg.

L-TryptophanFree-Form200 mgTryptophan in Cognitive Aminos against 605 products200 mg per serving; the middle half of products list 55 mg to 471 mg, the median 123 mg.200 mg

Higher than 54% of 605 products listing tryptophan (median 123 mg). Per day at the most servings: 400 mg.

Source: NIH ODS Dietary Supplement Label Database, label 293938 (entered August 23, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). 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 1 to 2 servings 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?

The products whose ingredient lists overlap most with Cognitive Aminos's, rare ingredients counting for more.

  • PEVArxInnovus Pharmaceuticals 3 shared, 44% alike

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
Recommendations: As a dietary supplement, take 2 capsules, 1-2 times daily, between meals.
Warnings
Warning: if you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.
Phenylketonurics: Contains phenylalanine
Keep out of reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, non-GMO & hypoallergenic
Certified Gluten-Free by the Gluten-free Certification Organization www.gluten.org
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 293938.

What else is on the label?

Other ingredients: Cellulose, Water, Ascorbyl Palmitate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GFCO.org (Gluten-Free Certification Organization). Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Cognitive Aminos have?

4 labels are on file under this name since January 7, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 293938 (current) Entered August 23, 2023 · on the market · 120 capsules · UPC 7 66298 01783 9
  2. Label 261612 Entered February 23, 2022 · off the market July 21, 2022 · 120 capsules · UPC 7 66298 01783 9
  3. Label 219589 Entered May 22, 2020 · off the market March 15, 2020 · 120 capsules · UPC 7 66298 01783 9
  4. Label 184363 Entered January 7, 2019 · off the market July 21, 2022 · 120 capsules · UPC 7 66298 01783 9

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

Who makes it?

The label names Pure Encapsulations (manufacturer), Sudbury, MA. All Pure Encapsulations products.

Where next?