Have otherwise an acid peel can make with my beautician and therefore knew that my skin can withstand such an application. Now I do it myself at home, reach as good results and save a lot of money here. The description is quite easy to understand and makes an application safely. I would, however, had no previous experience, I personally would probably have been too scared to try it. Now I can, however, also recommend beginners because you can really come up very slowly.