Common side effects of B12 injections include diarrhea, headache, and swelling
The third is duration and safety : short controlled studies in animals say almost nothing about what months or years of exposure would do in a human, which is precisely why the cycling section defaults to scheduled off periods rather than open-ended use
[16] Vials should be stored upright at 20-25 C in the original light-resistant container, protected from moisture and heat sources, and gently rolled between the palms to redissolve any oil stratification before withdrawal without vigorous shaking that can introduce air bubbles
Abels, Improved distribution analysis of cobalamins and cobalamin analogues in human plasma in which the use of thiol-blocking agents is a prerequisite, Clinica Chimica Acta, Volume 131, Issue 3, 15 July 1983, Pages 211-224, ISSN 0009-8981 Thakkar, K., & Billa, G
You need vitamin B12 for many bodily functions to work properly
NAD+ NAD+ (Nicotinamide Adenine Dinucleotide): Essential coenzyme for cellular energy, DNA repair, and anti-aging research
