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L-Carnitine

Guides and comparisons BCAA vs EAA: compare amino acid profiles and labels

L-carnitine is sold as capsules, tablets and ready-to-drink liquids, and the same product name can hide very different amounts. Look at the line that says L-carnitine on the label and at the serving size: a “3000” liquid lists 3,000 mg for a 15 ml serving, while a “100 000” bottle lists 1,000 mg for every 10 ml. Three capsule and tablet products are compared below by the price of 1 g of declared L-carnitine; liquids have their own comparison in Liquid L-Carnitine. Acetyl-L-carnitine and blends of several carnitine forms are different products and are not priced against plain L-carnitine.

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Portion prices are calculated from the net contents. Portion sizes differ between products; this is not a dosing recommendation. Read the full ingredients and directions on the product label.

Price per 1 g L-carnitine = portion price ÷ declared L-carnitine per portion (mg) × 1,000. Only the L-carnitine the label declares is counted, not the weight of L-carnitine tartrate.

L-Carnitine 1500 Extreme - 120 caps Olimp Nutrition L-Carnitine 1500 Extreme - 120 caps L-Carnitine, 1000mg - 50 tablets NOW Foods L-Carnitine, 1000mg - 50 tablets L-Carnitine, 500mg - 100 tablets Swanson L-Carnitine, 500mg - 100 tablets L-Carnitine, 500mg - 180 vcaps NOW Foods L-Carnitine, 500mg - 180 vcaps
Pack size 120 capsules 50 tablets 100 tablets 180 capsules
Main ingredients L-carnitine L-tartrate L-carnitine L-tartrate L-carnitine L-carnitine L-tartrate
Label portion 1 capsules 1 tablets 1 tablets 1 capsules
L-carnitine per label portion 1,000 mg 1,000 mg 500 mg 500 mg
Pack price €36.99 €22.99 €24.99 €48.99
Price per portion €0.31 €0.46 €0.25 €0.27
Price per 1 g L-carnitine €0.31 €0.46 €0.50 €0.54
Allergen information See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement.
Certifications — — — —
Label information Label information Label information Label information Label information

Prices include VAT for Ireland. Courier delivery: €6.99; free from €65.00. Estimated delivery: 2–4 working days.

Product facts checked: 2026-10-28.

Frequently asked questions

What is the difference between L-carnitine, L-carnitine L-tartrate and acetyl-L-carnitine on a label?

They are different forms. L-carnitine L-tartrate is L-carnitine bound to tartaric acid, so 1,500 mg of L-carnitine L-tartrate contains less than 1,500 mg of L-carnitine; one capsule in the comparison states 1,000 mg of L-carnitine from 1,500 mg of the tartrate. Acetyl-L-carnitine is a separate compound. The comparison uses only the milligrams of L-carnitine that the label declares.

How is the price per gram calculated?

The price of one serving in your delivery country is divided by the declared L-carnitine in that serving and scaled to 1 g. Serving size matters: a bottle can list 15 ml or 10 ml as one serving, and a tablet pack counts one tablet as one serving. This lines up labels; it is not a dosing recommendation.

Why does a product called "3000" differ from one called "100 000"?

The number in a product name is not always per serving. A "3000" liquid lists 3,000 mg of L-carnitine in a 15 ml serving; a "100 000" bottle holds 100,000 mg in the whole 1,000 ml bottle, which is 1,000 mg per 10 ml. Always read the per-serving line and the serving size on the label.