Deldicque L, Louis M, Theisen D, Nielens H, Dehoux M, Thissen JP, Rennie MJ, Francaux M
Potential Risks Risks depend on the exact product and your health history, but can include: Injection-site reactions (pain, bruising, swelling) Allergic or hypersensitivity reactions (rare but possible) Product-quality risks if the mixture is compounded and not prepared under appropriate standards For B12 injections specifically, review FDA-approved labeling and warnings (see the FDA prescribing information for cyanocobalamin injection )
Nature 627 , 445452 (2024)
As a doctor, I would also advise against skin bleaching because of the dangers of using these ingredients against a background of inadequate scientific data to support its use
Glutathione inhibits the enzyme tyrosinase, which is involved in melanin production, leading to reduced pigmentation and a lighter skin tone