Isn't the India or pharma made Glutathione—600mg, 1200mg, or 2000mg intended as a single-use injection and not meant to be stored and used over several days for microdosing? They usually come with 10ml of sterile water, but I’m not sure after reconstitution it preserves Glutathione for multiple uses. Plus, Glutathione is pretty sensitive to light, which adds to the concern.