Methylene Blue USP 3% (3.75 mL) – USA Pharmaceutical-Grade, Glass Bottle with Dropper

3% Methylene Blue, 3.75 mL per bottle, in a UV-resistant glass bottle with precision dropper. Zero heavy metals (lead, mercury, arsenic, cadmium) and no formaldehyde, stabilizers, or additives. Pharmaceutical-grade, lab-tested, USA-sourced, small-batch quality. Not for diagnosis or treatment of any disease.