We create each of our ranges specifically for problem or challenging skin types. Whilst we cannot guarantee that you will not have a reaction when using our skin type, using products that are created for your skin type will help to achieve best results. We include all of our ingreadients on each product page, should you have any allergies. If your skin regularly reacts to different skin products, we reccomend testing on a small patch of skin, preferably behind your ear. Leave product for 30 minutes, if no reaction such as swelling, heat or itchiness occurs then you should be good to go.