Our products are 100% free from toxins and irritants that are present in conventional skincare. The ingredients we use either organic, or plant-based or eco-certified. However, even an ingredient of natural origin may potentially cause an allergic reaction. These days there is a frightening variety of allergic reactions, intolerance and sensitivities that are very individual. Our common recommendation is to perform a patch test with any new product or brand. Apply a small amount of product on the inner side of your wrist. Wait for some time and observe your skin for any unwanted reactions. Also, check out our trial size sets that allow you to try several ZAYA products and find out what works best for you.