[95] Intramuscular or intravenous injection [edit] Injection of hydroxycobalamin is often used if digestive absorption is impaired, [2] but this course of action may not be necessary with high-dose oral supplements (such as 0.51.0 mg or more), [97] [98] because with large quantities of the vitamin taken orally, even the 1% to 5% of free crystalline B 12 that is absorbed along the entire intestine by passive diffusion may be sufficient to provide a necessary amount
They also support immune function and play a role in mood regulation
A slow, steady injection allows the B12 solution to disperse in the tissue, leading to better absorption
Although age-related collagen loss is inevitable, adopting a healthy lifestyle can help protect against collagen loss, delay the appearance of aging signs, and promote overall well-being.
if you inject in your right abdomen on Tuesday then on Thursday use the left side, and if you inject in your right thigh on Thursday, use your left on Sunday
(PubMed) Smith AR, Hagen TM