It should clearly state "U-100" or "insulin syringe." If the barrel markings show decimal values (0.1, 0.2, 0.3) rather than whole numbers (10, 20, 30), you likely have a TB syringe
Scientifically Backed, Medically Supervised Methylene Blue has a long history of clinical use and is gaining attention for its antioxidant and neuroprotective benefits
TB-500 is being studied as a thymosin beta-4 related peptide in the context of tissue repair, inflammation, and fibrosis biology
But robust, high-quality evidence for durable cosmetic skin-lightening from IV glutathione is lacking, and the FDA has not approved glutathione for skin lightening
GLOW is a community / supplier name for a pre-blended vial that typically combines GHK-Cu with BPC-157 (some catalogs also include TB-500 see Glow 70 variants)