An aesthetic clinic i went offer injecting sterile ACETYLCYSTEINE direct to my muscle suggesting that it helps improving skin condition. my skin will look brighter and smoother after injecting 2 ampoule once every week for 5-6 weeks. is it true?? are there any following severe side effects? should i take this offer? in addition, this ACETYLCYSTEINE is from Fluimucil, Zambon, Italy... thank u very much