i dont believe there is a SINGLE STUDY to support the claims that the current legal prohormones actually increase protein synthesis
ALL evidence is anecdotal
they will make you gain weight, and strength but mostly due to water retention, increase calorie/protein intake, and placebo
if ANYONE can correct me with a study i will never comment boards relating to prohormones again
further, they are not regulated by the FDA, and are often times laced with illicit AAS and banned substances, are of low quality, or contain other toxic compounds.
the benefits are marginal at best, and the side effects can be VERY prominent
aside from that all legal prohormones currently available are progestin base
which means they are based on female, menstrual cycle hormones. they cause mood swings, water retention, gas, bloating, acne and all the other negative effects, but fail to show benefits in clinical tests.