The most common allergy that people have to most Self-Tan is with Dihydroxyacetone (DHA). This is the tanning agents used in tans. Our version is derived from Sugar Beets and 99.99% of people do not have any reaction to our ingredients. Some of our products contain a small amount of D-Limonene which his also a know allergen for some people. As always, we would highly insist on reading the ingredients carefully and NOT using our product if you are allergic to any of them. Additionally, is highly recommended that a patch test be conducted 24-48 hours before application to ensure that there is no reaction to any of its ingredients. If a reaction occurs, please seek medical advice and bring the product you used with you to your appointment.