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L-Carnitine (pure)

Also called carnitine, L-carnitine tartrate, L-carnitine l-tartrate and 5 more

lclt, carnipure, acetyl-l-carnitine, acetyl l-carnitine, alcar.

The best price per 1 g L-carnitine and per month across 2 UK retailers, and where to buy it cheapest. A unit for comparing, not advice.

Comparing L-Carnitine

We count the L-carnitine a label states per serving, whatever the pack size or the serving size, so every product sits on one scale. L-Carnitine comes as L-Carnitine, L-Carnitine tartrate and acetyl-L-carnitine (ALCAR), and each form has its own table, because someone buying one would not usually take another as a like-for-like substitute. Products that combine L-Carnitine with other ingredients are listed separately, because their price buys more than L-carnitine. 1 g is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Prices last checked: 20 October 2026. Ranked purely by price per 1 g L-carnitine — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

L-Carnitine, L-Carnitine: products ranked by price per 1 g L-carnitine
Rank	Product	Per 1 g L-carnitine	Per month	Lasts	Buy	How it is worked out
1	Cheapest per doseLiquid L-Carnitine Capsules270 capsules · 135 servings · 1 g a servingDetails and price history Add to my stackclaimed: vegetarian	15p	£4.44	4 months	£19.99View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 270 ÷ 2 per serving = 135 In the pack: 135 × 1 g = 135 g £19.99 ÷ 135 g × 1 g = 14.8p per 1 g Amount per serving: stated on the label. What the retailer's listing says pack units “270Capsules” servings stated “(135 servings)” units per serving “Serving Size 2 capsules” amount per serving “L-Carnitine ; 1 g” Is this wrong? Tell us
2	Liquid L-Carnitine Capsules90 capsules · 45 servings · 1 g a servingDetails and price history Add to my stackclaimed: vegetarian	22p	£6.66	45 days	£9.99View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 90 ÷ 2 per serving = 45 In the pack: 45 × 1 g = 45 g £9.99 ÷ 45 g × 1 g = 22.2p per 1 g Amount per serving: stated on the label. What the retailer's listing says pack units “90Capsules” units per serving “Serving Size 2 capsules” amount per serving “L-Carnitine ; 1 g” Is this wrong? Tell us
3	L-Carnitine 500mg - Maximum Strength, Vegan Friendly60 capsules · 60 servings · 500 mg a servingDetails and price history Add to my stackclaimed: veganclaimed: vegetarian	53p	£15.95	30 days	£15.95View at Lamberts Healthcare (Nature's Best) (opens in a new tab)Free delivery over £20.00, otherwise £2.50 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 60 ÷ 1 per serving = 60 In the pack: 60 × 500 mg = 30 g £15.95 ÷ 30 g × 1 g = 53.2p per 1 g Amount per serving: stated on the label. What the retailer's listing says pack units “Specifications: 60 Capsules” amount per serving “capsule supplies an impressive 500mg of Carnitine in its L-form” Is this wrong? Tell us
+	Sport Vial - 30.0 · 30 sachets · 30 servings · 300 mg a servingDetails and price history Add to my stackCombination: price counts the l-carnitine onlyalso contains magnesium, calcium, vitamin c…Testing claimed on label	£6.61	£198.30	9 days	£59.49View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 30 ÷ 1 per serving = 30 In the pack: 30 × 300 mg = 9 g £59.49 ÷ 9 g × 1 g = £6.61 per 1 g Amount per serving: stated on the label. Also contains: magnesium, calcium, vitamin c, iodine, iron, copper, coq10, omega-3 fatty acids (epa, dha), vitamin e, niacin, pantothenic acid, vitamin b6, zinc, citrus bioflavonoids, riboflavin, thiamin, vitamin a, lutein, folate, lycopene, biotin, vitamin k, molybdenum, selenium, chromium, vitamin d, vitamin b12. The price counts the l-carnitine only. What the retailer's listing says pack units “Sport Vial - 30.0” servings stated “Servings Per Container: 30” units per serving “Serving Size: 1 Daily Pack” amount per serving “L-Carnitine ; 300 mg” Is this wrong? Tell us
+	Skinny Protein®700 g · 23.3 servings · 75 mg a servingDetails and price history Add to my stackCombination: price counts the l-carnitine onlyalso contains protein, green tea extract, chromium	£19.99	£599.83	2 days	£34.99View at Bio-Synergy (opens in a new tab)Free delivery over £49.00; below that, not known AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 700 ÷ 30 per serving = 23.3 In the pack: 23.3 × 75 mg = 1.75 g £34.99 ÷ 1.75 g × 1 g = £19.99 per 1 g Amount per serving: stated on the label. Also contains: protein, green tea extract, chromium. The price counts the l-carnitine only. What the retailer's listing says pack units “Specifications: 700g” amount per serving “75mg L-carnitine” confirmed values “confirmed from the retailer's own product page, not this listing's text: amount per serving 23.9; amount unit g; amount refers to compound; units per serving 30.0; pack units 700; pack unit type gram; chromium.amount per serving 30.0; chromium.amount unit mcg; chromium.amount refers to elemental” Is this wrong? Tell us
+	MegaMag Muscleze Magnesium Powder OrangeVitamin Planet · 30 servings · 51.5 mg a servingDetails and price history Add to my stackOrangeCombination: price counts the l-carnitine onlyalso contains magnesium, taurine, glutamine…	£30.95	£928.54	2 days	£47.82View at Vitamin Planet (opens in a new tab)Delivery £3.95 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 30 (as stated on the label) In the pack: 30 × 51.5 mg = 1.55 g £47.82 ÷ 1.55 g × 1 g = £30.95 per 1 g Amount per serving: stated on the label. Also contains: magnesium, taurine, glutamine, creatine, arginine, potassium, vitamin e, malic acid, vitamin b6, vitamin b1, vitamin b3, selenium, folate, vitamin b12. The price counts the l-carnitine only. What the retailer's listing says servings stated “30 Servings” units per serving “Per Scoop (5.4g)” amount per serving “L-Carnitine ; 51.5 mg” Is this wrong? Tell us
+	Designs for HealthPaleoCleanse Plus™ Strawberry Vanilla powder · 540 g · 15 servings · 500 mg a servingDetails and price history Add to my stackStrawberry VanillaCombination: price counts the l-carnitine onlyalso contains glycine, glucomannan, lysine…Out of stock	£8.29	£248.60	8 days	£62.15View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99 AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.	Show the working Servings: 540 ÷ 36 per serving = 15 In the pack: 15 × 500 mg = 7.5 g £62.15 ÷ 7.5 g × 1 g = £8.29 per 1 g Amount per serving: stated on the label. Also contains: glycine, glucomannan, lysine, vitamin c, veggie/fruit proprietary blend, potassium, l-threonine, calcium d-glucarate, l-cysteine, calcium, phosphorus, magnesium (buffered bisglycinate chelate), quercetin, taurine, milk thistle extract (80% silymarin), n-acetyl-l-cysteine, l-methionine, inositol, msm, green tea extract, choline, pantothenic acid, l-glutathione, vitamin e isomers (tocotrienols), niacin, zinc, vitamin b6, thiamin, riboflavin, vitamin a, copper, manganese, biotin, folate (quatrefolic), iodine, selenium, chromium, molybdenum, vanadium, vitamin b12, vitamin d, bone broth collagen protein (hydrobeef). The price counts the l-carnitine only. What the retailer's listing says pack units “540g” servings stated “Servings Per Container: 15” units per serving “one scoop (36g)” amount per serving “L-Carnitine ; 500 mg” Is this wrong? Tell us

By shop

Each shop's L-Carnitine products, with where its cheapest sits in the market.

How we work out these prices

We count the L-carnitine a product provides, not the weight of the whole compound it comes in. If a label states the L-carnitine amount, we use it. If it only gives the compound's weight, we estimate using a published conversion factor and mark the figure “estimated”. If we cannot tell which the number means, the product is left out until it can be confirmed.

Conversion factor used when only the compound weight is given: l-carnitine 100.0%. How we chose these.

Our full method · All L-Carnitine forms

Comparing L-Carnitine

Only combination products for this form

By shop

How we work out these prices