can i have b12 injections while pregnant Vitamin B12: Symptoms, Dosage & Toxicity Risks Vitamin B-12 Supplementation during Pregnancy

It supports extracellular matrix protein synthesis around the hair follicle

(Second on my list would be vitamin D, but its much harder to develop low vitamin D levels if you take a daily supplement, as I explain in this post

Update in: Cochrane Database Syst Rev

Possible Side Effects 5-Amino-1MQ is a metabolic research compound widely explored in laboratory and experimental settings related to NNMT inhibition, NAD-related pathways, cellular-energy regulation, and metabolic function

It also acts as an intermediate in the pathway for valine, threonine, methionine, thymine, isoleucine, cholesterol and odd-chain fatty acids