there is always the possibility that this may be so. any product that seemingly improves the body’s mechanisms (as this does by its buffering action) usually has positive benefits, how much so is an open question.
things that improve the skin are the same things that maximize your gains: lean meat and animal protein, balance of fats, fruits and veggies - the whole color spectrum of each, fish oil, perhaps creatine, borage oil works for some.
it also would stack well with REZ-V for this goal and perhaps TRIBEX if you are male.
disclaimer: i am not a Biotest expert, i don’t even play one on TV