Starting at 0.25mg weekly for the first four weeks, then increasing to 0.5mg for weeks 5-8, then to 1mg for weeks 9-12, and continuing to step up through 1.7mg and 2.4mg at four-week intervals
They appear most common in places like: Abdominal wall Thighs Upper arms Buttocks Breasts The cause of stretch marks also varies in situations like: pregnancy, sudden gain/loss of weight, rapid growth, hereditary, stress, changes in physical conditions, etc
This guide explains why it happens, how to prevent it, what works for regrowth, and when you should be concerned
PPRs impact on male reproductive health is another area of concern
It functions as an antioxidant compound in the body
For those who don't care for a shot, oral supplementation with the two active forms of B12, methylcobalamin and adenosylcobalamin, may be as effective as a B12 shot