Reviv Health makes pharmaceutical-quality Methylene Blue in a precise liquid tincture — USP-grade and third-party lab tested for purity and potency. Methylene blue works as an alternative electron carrier in the mitochondria, supporting cleaner cellular energy, sharper focus, and antioxidant balance. It's one of the most-studied compounds in cellular health, with over a century of use, and every claim on our site is backed by cited, peer-reviewed research. No fillers, no dyes — just clean, accurately dosed methylene blue. Ships across the US and Canada.