The Skin Culture Peels are generally safe for all skin types, skin colors and effective in treating most skin conditions and problems. Skin Peel 4000 treatment can bring about a noticeable improvement to the appearance of your skin. Whilst we cannot guarantee that just one treatment will totally clear the problem you are trying to treat, we can guarantee that you should see an improvement to the look and feel of your skin after your first Peel 4000 treatment. Caution: Please read skin peel instructions before use. When proper application is used, and directions followed, risks are minimal. This peel contains salicylic (aspirin), resorcinol and less that 2% phenol. A 15-20 minute hot stinging sensation may be noted upon initial contact. A patch test is always recommended prior to a full facial peel.