PlainVitamins

Tri-Amino

by Douglas Laboratories · capsule · 100 vegetarian capsules

  • On the market (NIH)
  • UPC 3 10539 00292 6
  • DSLD label 232543
  • Serving 4 vegetarian capsules
  • 25 servings

Tri-Amino by Douglas Laboratories lists 3 ingredients, 3 with an amount per serving of 4 vegetarian capsules, such as 900 mg of L-ornithine hydrochloride, 1,200 mg of L-arginine and 1,200 mg of L-lysine hydrochloride. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2020.

What is in Tri-Amino?

Each row as the label prints it, per serving of 4 vegetarian 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).

Tri-Amino: Supplement Facts rows against the market (DSLD label 232543, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Ornithine Hydrochloride900 mgOrnithine in Tri-Amino against 258 products900 mg per serving; the middle half of products list 100 mg to 900 mg, the median 400 mg.900 mg

Higher than 73% of 258 products listing ornithine (median 400 mg).

L-Arginine1,200 mgArginine in Tri-Amino against 1,455 products1,200 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.1,200 mg

Higher than 78% of 1,455 products listing arginine (median 500 mg).

L-Lysine Hydrochloride1,200 mgLysine in Tri-Amino against 1,250 products1,200 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.1,200 mg

Higher than 84% of 1,250 products listing lysine (median 500 mg).

Source: NIH ODS Dietary Supplement Label Database, label 232543 (entered August 23, 2020), 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: As a dietary supplement, adults take 4 capsules daily before bedtime or as directed by your health professional.
Warnings
Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, Non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 232543.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Vegetable Stearate, Magnesium Silicate, Microcrystalline Cellulose.

How many labels does Tri-Amino have?

4 labels are on file under this name since January 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 232543 (current) Entered August 23, 2020 · on the market · 100 vegetarian capsules · UPC 3 10539 00292 6
  2. Label 56475 Entered February 23, 2016 · off the market May 22, 2020 · 100 capsules · UPC 3 10539 00292 6
  3. Label 8865 Entered June 1, 2012 · off the market December 15, 2015 · 100 capsules · UPC 3 10539 00292 6
  4. Label 5137 Entered January 25, 2012 · off the market January 20, 2012 · 100 capsules · UPC 3 10539 00292 6

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

Who makes it?

The label names Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.

Where next?