Kenji Yoshizato 5 he smells funny, but not bad, when you use it, you skin starts itchy and maybe some ppls can not use it, its kinda strong.He definitely does his job, my skin feels so well after using it.For use, use 1 time a week, just for precaution, of couse you can use as many as you want, but i do use mine 1 time a week.After peeling i do recomend using niacinamide serum for a "complete" routine, actually its more than that, but those 2 does their job.