Superior Labs Acetyl L-Carnitine 500 mg

Our verdict

Superior Labs Acetyl L-Carnitine 500 mg works out to $0.27 per serving of l-carnitine, at 500mg per serving in capsule form. That puts it around the median of the 46 l-carnitine products we can price per dose, where the typical serving costs $0.18, a Value Index of 0.7 where the median product is 1.0. One container lasts 60 days at the label dose of 1 serving a day, about $7.98 a month. We could not verify a third-party certification for Superior Labs 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.