The benefit of this is that this higher dose can be injected in one shot and the benefits of B12 supplementation may be felt sooner
Wang G, Zhao L, jiang Q, Sun Y, Zhao D, Sun M, et al
If you are using B12 injections as part of a weight loss program, you might notice the benefits of a more regular metabolism and higher energy levels
He W, Dai C, Li Y, Zeng G, Monga SP, Liu Y
Injectable formats include IV (intravenous), IM (intramuscular), and SubQ (subcutaneous), each with different absorption rates and convenience levels
Though you shouldnt expect an improvement for hooded eyes where the excess skin in the eyelid is the primary cause (because that tends to be due to loss of volume in the eyelid and loss of elasticity in that eyelid skin, which cannot be influenced too much by an area so far away as the temples)