Follow the simple 2 step instructions provided on the Active Peel System packaging after cleansing your face. The Active Peel System steps 1 & 2 will both produce a cool tingling sensation which is normal. The whole process only takes 5 minutes and is left on. Don't use any skincare products with active ingredients over the top after this treatment, only use a moisturiser if you want to & you must use SPF if you do this treatment during the day. You can use all normal skincare regime products including those with active ingredients from the day after this treatment.