L Carnitine
Check out our great range of l-carnitine supplements below. Getting carnitine from food alone can be difficult, making our convenient supplements a great addition to your diet to support your fitness goals.
Shop L Carnitine at Myprotein
L-carnitine is a naturally occurring amino acid derivative found in the body, with the highest concentrations in muscle tissue. It's one of the most researched compounds in sports nutrition, and the range here covers every format — from capsules to powder — so you can fit it into your routine however works best for you.
Every product is developed by Myprotein's expert nutritionists and built to deliver consistent, quality doses of L-carnitine. Whether you're after the convenience of capsules or prefer to mix a powder into your pre-workout shake, there's a format here that fits.
Who L Carnitine Are For
L-carnitine is popular with people who train regularly and want to stack a well-researched compound alongside their existing supplement routine. It fits naturally into the regimens of gym-goers, endurance athletes, and anyone with an active lifestyle who's already covering the basics — protein, creatine, and a solid training programme.
It's also a straightforward choice for anyone who doesn't get much L-carnitine through their diet. Red meat is the richest dietary source, so those who eat less of it often look to supplementation to top up their intake. The formats available here make that easy regardless of your daily schedule.
When to Use L Carnitine
Most people take L-carnitine around their workout — either in the lead-up to training or immediately after. Taking it alongside a carbohydrate source is a common approach among regular users, as insulin levels play a role in how carnitine is transported into muscle tissue. Mixing L-carnitine powder into a shake with fast-digesting carbs is a practical way to hit both at once.
Outside of training days, consistency is what matters most. L-carnitine can be taken at any point during the day, and building it into an existing routine — alongside breakfast or with your morning supplements — is an easy way to stay on track. The capsule format is particularly well-suited for this, making daily use as straightforward as possible.
L Carnitine Benefits
A Naturally Occurring Compound
L-carnitine is produced naturally in the body from the amino acids lysine and methionine. It's found in highest concentrations in muscle tissue, which is why it features so prominently in sports nutrition. Supplementing with it is a reliable way to ensure consistent daily intake, particularly for those who limit red meat consumption.
Multiple Formats to Suit Your Routine
The range includes both capsules and powder, so there's no need to compromise. Liquid L-Carnitine Capsules deliver 1g of L-carnitine per serving in a convenient, no-mess format. L Carnitine Amino Acid Powder gives you 500mg per serving and mixes easily into any shake, making it a flexible option if you're already blending a pre- or post-workout drink.
Stackable with Your Existing Supplements
L-carnitine sits comfortably alongside most supplement stacks. It's unflavoured in powder form and tasteless in capsule form, so it won't clash with anything else you're taking. Many athletes layer it in with their protein, creatine, or EAA routine without any adjustment needed.
Built on Quality Ingredients
Every L-carnitine product here is formulated by Myprotein's nutritionist team using high-quality L-carnitine. You get a straightforward ingredient with no unnecessary fillers or complicated blends — just a clean, consistent dose of one of the most studied amino acid derivatives in sports nutrition.
Popular Picks
Liquid L-Carnitine Capsules — A naturally occurring amino acid in a convenient capsule form, Liquid L-Carnitine Capsules deliver 1g of L-carnitine per serving and fit any fitness goal going.
L Carnitine Amino Acid Powder — For those who prefer their supplements in powder form, L Carnitine Amino Acid Powder gives you 500mg of this naturally occurring amino acid per serving, whatever your training goal.
Collagen Protein Powder — Collagen Protein Powder packs up to 26g of hydrolysed collagen peptides per serving, using Type I and III — the types most abundant in skin and connective tissue.
FAQs
What is L-carnitine?
L-carnitine is an amino acid derivative that occurs naturally in the body, synthesised from the amino acids lysine and methionine. It's found in particularly high concentrations in muscle tissue and is also present in dietary sources such as red meat and dairy. In supplement form, it's available as capsules or powder, making it easy to include in a daily routine regardless of diet or lifestyle.
What's the difference between L-carnitine capsules and L-carnitine powder?
The main difference is format and dose. Liquid L-Carnitine Capsules deliver 1g of L-carnitine per serving in a convenient, no-prep format — ideal if you want something quick and portable. L Carnitine Amino Acid Powder provides 500mg per serving and mixes into shakes or drinks, making it a flexible choice if you're already blending a pre- or post-workout formula. Both use high-quality L-carnitine; the right pick comes down to how you prefer to take your supplements.
Is L-carnitine an amino acid?
L-carnitine is technically an amino acid derivative rather than a standard amino acid. It's produced in the body from two essential amino acids — lysine and methionine — and plays a distinct role in how the body handles nutrients at a cellular level. That's why you'll often find it listed separately from EAAs or BCAAs in a supplement range, even though it shares the amino acid family tree.
Can I take L-carnitine with other supplements?
L-carnitine stacks cleanly with most supplements. It's unflavoured in powder form and tasteless in capsule form, so it won't affect the taste of anything else you're mixing. Many people take it alongside protein shakes, creatine, or EAAs without any adjustment to their existing stack. If you're taking multiple supplements, it's always worth checking the full ingredient lists to avoid doubling up on anything unintentionally.
When should I take L-carnitine?
Most people take L-carnitine around their training session, either before or after. A popular approach is to take it alongside a carbohydrate source, as insulin is involved in how carnitine is transported into muscle tissue. On rest days, consistency matters more than timing — taking it at the same point each day, such as with a meal, is an easy way to build it into your routine.
How much L-carnitine is in each serving?
Serving sizes vary by product. Liquid L-Carnitine Capsules deliver 1g (1000mg) of L-carnitine per serving, while L Carnitine Amino Acid Powder provides 500mg per serving. Both are clearly labelled so you can track your intake accurately and adjust based on your daily supplementation plan.
Is L-carnitine suitable for vegetarians?
Red meat is the richest dietary source of L-carnitine, meaning vegetarians and those who eat less animal protein tend to have lower dietary intake. L-carnitine supplements are a practical way to top up intake without changing your diet. Check the individual product page for full ingredient and allergen information to confirm suitability for your dietary preferences.
Who developed Myprotein's L-carnitine products?
Myprotein's L-carnitine range is developed by Myprotein's expert nutritionists. Every product is formulated to deliver consistent, quality doses of L-carnitine with a focus on clean ingredients — no unnecessary fillers or complicated blends, just straightforward supplementation built around what athletes actually need.
How does L-carnitine fit into a broader supplement stack?
L-carnitine sits naturally alongside a range of other supplements. It's commonly used in conjunction with protein powders, EAAs, and creatine by those looking to build a comprehensive training stack. If you're also considering collagen supplementation, Collagen Protein Powder is available on this page, delivering up to 26g of hydrolysed collagen peptides per serving — covering a different nutritional angle within the same range.
What L-carnitine formats are available?
The range covers capsules and powder. Capsules are the most convenient option for on-the-go use, while powder offers more flexibility for blending into drinks and shakes. Both formats are available directly from this page, and the full range also includes Impact EAA for those who want to cover essential amino acids alongside their L-carnitine intake.