According to the manufacturer, the usual daily recommended amounts of cyanocobalamin, vitamin B12 for lactating women should be taken maternally during breast-feeding (see Dosage)
If not there, a quick internet search or try a few suggestions on our Vitamin B12 Needle and Syringe Information page
Healthy Hair, Skin, and Nails: B vitamins are essential for maintaining healthy skin, hair and nails, promoting their growth, strength, and overall appearance
I managed to get rid of the chest rash though, with salcura bioskin, went in 2 days
By modulating this pathway, researchers explore how it may support investigations into metabolic energy balance, adipose response, and overall metabolic health
Vitamins B1, B2, B3, B5, B6, and B12