where to inject b12 in thigh Injections at Home - Safety Guide for Self-Administration Best Vitamin B12 Injection Sites

Most medical experts recommend seeing a doctor for evaluation, testing, prescription, training, and ongoing monitoring if pursuing TRT

Pinotti M, Bertolucci C, Frigato E, Branchini A, Cavallari N, Baba K, Contreras-Alcantara S, Ehlen JC, Bernardi F, Paul KN, Tosini G

Alatzoglou KS, Turton JP, Kelberman D, Clayton PE, Mehta A, Buchanan C, Aylwin S, Crowne EC, Christesen HT, Hertel NT, Trainer PJ, Savage MO, Raza J, Banerjee K, Sinha SK, Ten S, Mushtaq T, Brauner R, Cheetham TD, Hindmarsh PC, Mullis PE, Dattani MT

A good starting dose would be 500mcg (0.5mg) per day, but you can give up to twice as much

Studies show that even a little amount of alcohol can decrease vitamin B12 absorption by about 5-6%