Doctor's Best Acetyl L-Carnitine, 500mg

Acetyl L-carnitine — the acetylated form of L-carnitine — is the single-ingredient headline here, supplied by Doctor's Best at 500 mg in vegetarian capsules.

Doctor's Best is a US brand known for straightforward, ingredient-led labels, and this product follows the pattern: one compound, a clear strength, and a choice of 60 or 120 vcap bottles depending on how long you want a bottle to last.

The wider Doctor's Best range at NE Commerce covers everything from creatine to CoQ10 for single-brand orders.

• Ingredient: acetyl L-carnitine, 500 mg
• Sizes: 60 or 120 vcaps
• Vegetarian capsules