
Metabolic Research
L-Carnitine
10mlBuy L-Carnitine sterile solution from UK stock, sent the same day you order. One 10ml vial at 600mg/ml, for laboratory research only.
Chemical identity: PubChem CID 10917
Vial size
Quantity
Handling
L-Carnitine storage
- Storage
- 2–8°CDo not freeze
- Once opened
- 2–8°CMulti-use vial. Keep at and discard 28 days after first puncture.
- Shipping
- Tracked 24Royal Mail, dispatched the same day

The range
One vial, or the set.
Every vial in the range is lyophilised, labelled and lot-numbered the same way. Pictured: BPC-157, TB-500, GHK-Cu, Glow and Retatrutide.
Browse the rangeL-Carnitine UK: common questions
- What's the L-Carnitine price?
- £29.99 for one 10ml vial at 600mg/ml. Two vials are £53.98, three are £71.98 and five are £104.97, which is 10%, 20% and 30% off. Every vial ships from our Manchester stock on the day you order.
- Is this the L form or a racemic mix?
- It is the L form, levocarnitine, PubChem CID 10917, molecular weight 161.2 Da, formula C7H15NO3. DL-carnitine is a different PubChem record (CID 288) and contains the D-enantiomer, which the body cannot use in the same way.
- How fast is delivery?
- Same day, from Manchester, whenever you order. Royal Mail Tracked 24 aims for next working day delivery. Free over £40, otherwise £3.99.
- What else do I need with L-Carnitine?
- Nothing. This is a ready-made sterile solution at 600mg/ml, so no diluent is needed.
- How should I store L-Carnitine?
- Keep the vial at 2-8°C, in a fridge, away from light. Don't freeze it. After the first puncture of the stopper, use within 28 days.
- Can I buy L-Carnitine in the UK?
- Yes, for laboratory research. L-Carnitine isn't a controlled drug. Levocarnitine is a UK-licensed medicine as Carnitor, but this vial is a research-grade sterile solution, not that medicine, and is sold for research use only, not for human use. You must be 18 or over.
About L-Carnitine
L-Carnitine is a small quaternary ammonium compound, C7H15NO3, 161.2 Da, not a peptide. It is the R-enantiomer of carnitine, made in the body from lysine and methionine, and is studied for its role in moving long-chain fatty acids into mitochondria. We sell it as a sterile aqueous solution at 600mg/ml in a 10ml vial, 6g in total, for laboratory research only.
Research areas
- Mitochondrial fatty acid transport
- Carnitine acyltransferase assays
- Cell culture metabolic studies
- Gut microbiome TMAO metabolism
L-Carnitine in the research literature
The function of carnitine stayed open until Fritz and colleagues, 1959, showed in Science that it governs long-chain fatty acid oxidation in muscle preparations. The Bremer 1983 review in Physiological Reviews set out the carnitine shuttle as it is still taught: carnitine palmitoyltransferase I on the outer mitochondrial membrane, the carnitine-acylcarnitine translocase, and carnitine palmitoyltransferase II on the inner membrane. Rebouche and colleagues, 2004, cover the kinetics and regulation of L-carnitine and acetyl-L-carnitine metabolism.
More recent work is less tidy. Koeth and colleagues, 2013, in Nature Medicine, traced gut microbial conversion of L-carnitine to trimethylamine N-oxide, and that paper is the reason carnitine now appears in microbiome and TMAO studies. Hathcock and colleagues, 2006, is the formal risk assessment for carnitine as a nutrient. Stereochemistry matters throughout: assays use the R-enantiomer, levocarnitine, because the D form is not handled by the acyltransferases in the same way.
L-Carnitine solution: handling a multi-use vial
This is a sterile aqueous solution, not freeze-dried powder, so the label reads as a concentration, 600mg/ml, in a 10ml vial, 6g in total. The lab report, once published on this page, will show identity against the 161.2 Da expected mass and the enantiomeric form. Levocarnitine is a UK-licensed medicine as Carnitor; this vial is a research reagent with no marketing authorisation.
Treat the vial as multi-use: keep it at 2-8°C between uses, discard it 28 days after the first puncture, and discard it sooner if the solution turns cloudy or shows particles. One size, with two, three and five vial packs at 10, 20 and 30% off. Buy L-Carnitine UK stock and it leaves Manchester the same day, with free UK delivery over £40.
Stocked in the UK and dispatched from Manchester the same day you order. The lab report for this lot will be published on this page.
Legal notice
This product is sold strictly for in-vitro laboratory research purposes only. It is not approved for human or veterinary use, is not a drug, food, or cosmetic, and should not be misused as such. UK Peptides accepts no liability for misuse. By purchasing you confirm you are a qualified researcher aged 18 or over.
L-Carnitine 10ml
£29.99


