PlainVitamins

L Carnitine 550

by SNI Essential Series · capsule · 60 capsules

  • Off the market since November 2019 (NIH)
  • UPC 8 52263 90564 2
  • DSLD label 6494
  • Serving 2 to 4 capsules; amounts per 1 capsule
  • 60 servings

L Carnitine 550 by SNI Essential Series lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 25 mg of thiamine, 550 mg of L-carnitine and 25 mg of methionine. Its current label entered the NIH Dietary Supplement Label Database on March 23, 2012.

What is in L Carnitine 550?

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).

L Carnitine 550: Supplement Facts rows against the market (DSLD label 6494, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Vitamin B125 mg1,625%Thiamin in L Carnitine 550 against 9,830 products25 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg25 mg

Higher than 72% of 9,830 products listing thiamin (median 5 mg).

L-Carnitine550 mgL-Carnitine in L Carnitine 550 against 1,338 products550 mg per serving; the middle half of products list 110.5 mg to 1,000 mg, the median 500 mg.550 mg

Higher than 62% of 1,338 products listing L-carnitine (median 500 mg).

Methionine25 mgMETHIONINE in L Carnitine 550 against 981 products25 mg per serving; the middle half of products list 25 mg to 250 mg, the median 100 mg.25 mg

73% of 981 products listing METHIONINE give more (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 6494 (entered March 23, 2012), 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?

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
SUGGESTED USE:†Take 2 capsules daily. For use when dieting take up to 4 capsules daily.
Warnings
Do not use if tamper-evident seal is broken.
WARNING: Consult a physician before using this product.
Keep out of the reach of children.
Storage
Store in a cool, dry place 15(0)-30(0)C (59(0)-86(0)F).

Source: label statements in DSLD label 6494.

What else is on the label?

Other ingredients: Maltodextrin, Magnesium Stearate, Silica, Gelatin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the USA.

How many labels does L Carnitine 550 have?

One label is on file, entered on March 23, 2012.

  1. Label 6494 (current) Entered March 23, 2012 · off the market November 20, 2019 · 60 capsules · UPC 8 52263 90564 2

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

Who makes it?

The label names SNI(TM) RING OF CONFIDENCE (distributor), Freeport, NY. All SNI Essential Series products.

Where next?