GZ HAOYUAN Methylene Blue Drops 1% USP Grade – Brain Health & Cellular Metabolism (2 fl oz)

GZ HAOYUAN Methylene Blue Drops provide 1% USP Grade methylene blue to support brain health, metabolism, and cellular vitality. Free from formaldehyde, alcohol, and gluten, this 2 oz bottle is easy to use—mix 1 ml (20 drops) in water or your favorite beverage for daily support.