1% methylene blue drops, formulated with pharmaceutical-grade USP methylene blue Sold here as an aquatic dye.Potentially for humans and backed by third-party testing for purity and efficacy. Sold here as an aquatic dye.PotentiallyDesigned for individuals seeking to enhance mental clarity, sustain cognitive vitality, or address discomfort from Burning Mouth Syndrome (BMS), this supplement combines scientific innovation with rigorous safety standards.