L-Carnitine 500mg 10ml (10 Vials / Kit)

L-Carnitine at a glance

L-Carnitine is a small zwitterionic molecule, a hydroxylated butyrate carrying a trimethylammonium group, with the formula C₇H₁₅NO₃ and a molecular weight of 161.2 g/mol. Only the L-enantiomer is biologically active, and the D-form can interfere with it. The body produces carnitine in the liver and kidney from lysine and methionine, while diet, particularly meat, supplies more. It is neither a peptide nor a true amino acid. This listing is a pre-dissolved solution, reflecting how readily the compound dissolves in water.

Price and availability

A kit of 10 vials at 500mg 10ml each (5000 mg in total) from HK Peptide, shipped from Hong Kong, Hong Kong. $70.00 buys the whole kit, which is $0.014/mg. HK Peptide is currently the only brand on the marketplace selling L-Carnitine. Checkout goes into escrow first; the funds move to HK Peptide once delivery is confirmed.

What it is studied for

Long-chain fatty acids cannot cross the inner mitochondrial membrane unaided. At the outer membrane, carnitine palmitoyltransferase 1 links them to carnitine; a translocase carries the resulting acylcarnitines inward; and carnitine palmitoyltransferase 2 releases the fatty acyl group for beta-oxidation. Malonyl-CoA inhibits CPT1, tying carnitine-dependent fat use to the cell's carbohydrate status. Carnitine also buffers excess acetyl groups as acetylcarnitine, which researchers study in relation to glucose metabolism and muscle fatigue.

Research and regulatory status

Levocarnitine is an approved prescription medicine for primary and secondary carnitine deficiency, and carnitine is widely sold as a dietary supplement. Research covers exercise metabolism, kidney disease, heart conditions and insulin resistance, with mixed results in people who are not deficient. Gut bacteria convert dietary carnitine to trimethylamine, a precursor of TMAO, which has added a cardiovascular research angle. Research-grade solution is distinct from approved pharmaceutical products.

Checking the lab data

For a small-molecule solution, the report should show identity by HPLC against a reference standard or by infrared or NMR methods, an assay confirming concentration against the label, and ideally chiral analysis showing low D-carnitine content. Sterility, bacterial endotoxin and pH are standard checks for a sterile solution. The liquid should be clear and colorless, without particles, and the vial seal should be intact.

This listing has no third-party report on file yet. The lab reports directory and the marketplace show which brands do publish testing.

Listing details

Compound

L-Carnitine

Synonyms

Levocarnitine

Class

Amino-acid derivative (quaternary ammonium compound)

Format

Pre-mixed solution

Molecular formula

C₇H₁₅NO₃

Molecular weight

161.2 g/mol

Vial strength

500mg 10ml

Vials per kit

10

Total content

5000 mg

Price per mg

$0.014

Sold by

HK Peptide

Ships from

Hong Kong, Hong Kong

Lab report

Not yet published

Storage and preparation

Store sealed and as the label directs, away from heat and direct light. Discard anything with a broken seal or cloudy contents.

Buyer questions

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.