Acetyl-L-Carnitine Arginate

by Life Extension · capsule · 90 capsules

  • On the market (NIH)
  • UPC 7 37870 19749 2
  • DSLD label 328274
  • Serving 1 capsule
  • 90 servings

Acetyl-L-Carnitine Arginate by Life Extension lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 320 mg of acetyl-L-carnitine arginate dihydrochloride and 300 mg of acetyl-L-carnitine hydrochloride. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2025.

What is in Acetyl-L-Carnitine Arginate?

Each row as the label prints it, per serving of 1 capsule. 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).

Acetyl-L-Carnitine Arginate: Supplement Facts rows against the market (DSLD label 328274, January 2026 release)
IngredientAmount% DVAmong products listing it
Acetyl-L-Carnitine Arginate Dihydrochloride320 mg
Acetyl-L-Carnitine Hydrochloride300 mgAcetyl L-Carnitine in Acetyl-L-Carnitine Arginate against 933 products300 mg per serving; the middle half of products list 200 mg to 525 mg, the median 500 mg.300 mg

61% of 933 products listing acetyl L-carnitine give more (median 500 mg). Per day at the most servings: 900 mg.

Source: NIH ODS Dietary Supplement Label Database, label 328274 (entered March 25, 2025), 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 3 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?

2 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
Directions: Take one (1) capsule three times daily, preferably on an empty stomach, or as recommended by a healthcare partitioner. This product can be taken in divided doses or all at once.
Warnings
Read the entire label and follow the directions carefully prior to use.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.
When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Allergens and what it does not contain
Gluten free Non GMO LE Certified
Storage
Store tightly closed in a cool, dry place.

Source: label statements in DSLD label 328274.

What else is on the label?

Other ingredients: Cellulose, Microcrystalline Cellulose, Vegetable Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non GMO LE Certified.

How many labels does Acetyl-L-Carnitine Arginate have?

6 labels are on file under this name since May 22, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 328274 (current) Entered March 25, 2025 · on the market · 90 capsules · UPC 7 37870 19749 2
  2. Label 232618 Entered August 23, 2020 · on the market · 90 vegetarian capsules · UPC 7 37870 19749 2
  3. Label 182209 Entered October 25, 2018 · off the market July 14, 2020 · 90 vegetable capsules · UPC 7 37870 19749 2
  4. Label 64800 Entered September 22, 2016 · on the market · 90 vegetarian capsules · UPC 7 37870 18749 3
  5. Label 59709 Entered May 22, 2016 · on the market · 100 vegetarian capsules · UPC 7 37870 15251 4
  6. Label 59708 Entered May 22, 2016 · off the market April 1, 2016 · 100 vegetarian capsules · UPC 7 37870 15251 4

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

Who makes it?

The label names Quality Supplements and Vitamins, Inc. (distributor), Ft. Lauderdale, FL. All Life Extension products.

Where next?