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Vitacost Alpha Lipoic Acid is a single-ingredient antioxidant supplement sold in capsule form for adults. Alpha lipoic acid is a sulfur-containing compound the body makes in small amounts and also gets from foods like spinach and red meat; it is widely taken for antioxidant support and for nerve and blood-sugar health. The formula is labeled free of eggs, shellfish and tree nuts. At $13.74 at iHerb as of November 4, 2026, it is the lowest new price among the two stores listing it.
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Lowest price we've seen: $13.74 on Nov 4 at iHerb. Tracked across 2 stores since Nov 4.
Alpha lipoic acid is a well-studied supplement, and store-brand versions like this one are generally reviewed as a cheap way to try it. Users often report it is easy to take and gentle on the stomach, while some say effects are subtle and hard to notice.