Acetyl-L-Carnitine 500 mg
by Life Extension · capsule · 100 vegetarian capsules
- On the market (NIH)
- UPC 7 37870 15241 5
- DSLD label 328273
- Serving 1 vegetarian capsule
- 100 servings
Acetyl-L-Carnitine 500 mg by Life Extension lists 2 ingredients, 2 with an amount per serving of 1 vegetarian capsule, such as 14 mg of vitamin C and 500 mg of acetyl-L-carnitine. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2025.
What is in Acetyl-L-Carnitine 500 mg?
Each row as the label prints it, per serving of 1 vegetarian 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Ascorbyl Palmitate | 14 mg | 16% | 94% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 56 mg. |
| Acetyl-L-Carnitineas Acetyl-L-Carnitine Hydrochloride | 500 mg | 26% of 933 products listing acetyl L-carnitine give more (median 500 mg). Per day at the most servings: 2,000 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 328273 (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?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- 94% of the 18,583 products that print an amount of vitamin C list more than its 14 mg of vitamin C (median 100 mg).
The NIH database records 2 to 4 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 Acetyl-L-Carnitine 500 mg's, rare ingredients counting for more.
- Best Acetyl-L-Carnitine HCl Featuring Sigma Tau CarnitineDoctor's Best · off the market 1 shared, 72% alike
- Maximum Strength Acetyl L-Carnitine 1000Vitamin World · off the market 1 shared, 72% alike
- Acetyl-L CarnitineNOW · off the market 1 shared, 72% alike
- Acetyl L-Carnitine 1000 mgPhysioLogics · off the market 1 shared, 72% alike
- Acetyl L-Carnitine 250 mgNature's Bounty 1 shared, 72% alike
- Acetyl L-Carnitine 500 mgVitaCeutical Labs 1 shared, 72% 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
- Read the entire label and follow the directions carefully prior to use. Directions: Take one (1) capsule two to four times daily, or as recommended by a healthcare practitioner. This product is best utilized when taken on an empty stomach with water or juice in divided doses 45 minutes before breakfast and lunch.
- Warnings
- 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 328273.
What else is on the label?
Other ingredients: Cellulose, Microcrystalline Cellulose, 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 500 mg 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.
- Label 328273 (current) Entered March 25, 2025 · on the market · 100 vegetarian capsules · UPC 7 37870 15241 5
- Label 231873 Entered August 23, 2020 · off the market August 9, 2023 · 100 vegetarian capsules · UPC 7 37870 15241 5
- Label 210610 Entered December 22, 2019 · off the market July 14, 2020 · 100 vegetarian capsules · UPC 7 37870 15241 5
- Label 59639 Entered May 22, 2016 · off the market April 11, 2019 · 100 vegetarian capsules · UPC 7 37870 15241 5
- Label 59638 Entered May 22, 2016 · off the market April 1, 2016 · 100 vegetarian capsules · UPC 7 37870 15241 5
- Label 59637 Entered May 22, 2016 · off the market April 1, 2016 · 100 vegetarian capsules · UPC 7 37870 15241 5
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.