Best Naturals Acetyl L-Carnitine (ALCAR) 500mg

Our verdict

Best Naturals Acetyl L-Carnitine (ALCAR) 500mg works out to $0.09 per serving of l-carnitine, at 500mg per serving in capsule form. That puts it the cheapest quarter of the 46 l-carnitine products we can price per dose, where the typical serving costs $0.18, a Value Index of 2.1 where the median product is 1.0. One container lasts 360 days at the label dose of 1 serving a day, about $2.68 a month. We could not verify a third-party certification for Best Naturals in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.