DHA has been FDA approved since 1977. The approval is based on the fact that any harmful ingredients remaining from the refining process could not be absorbed into the blood stream through your skin. Since the advent of spray on tanning in all its forms the rules are now changing. Additionally, modern science has now realized that the skin is the largest organ of the body and what we apply to it can actually be causing problems through absorption. It is important that you understand exactly what you are working with to protect not only yourself but also your clients. Scentual Sun products contain none of these ingredients and are globally approved. This information is also covered thoroughly in our training. If you would like to learn more about the FDA and OSHA click here or feel free to give us a call.