A number of ingredients included in our treatments increase your skin's sensitivity to sunlight. We recommend wearing a minimum SPF 30 sunscreen every day whether or not you're using one of our treatments. This is because UV light can damage the skin; it can worsen acne, pigmentation, fine lines and wrinkles, increase the risk of skin cancer and reduce the collagen and elastin in your skin. Eighty percent of what we see as aging skin is due to UV light exposure so it is super important for your general skin health to avoid sun exposure not only by wearing a sunscreen if you are going to be outside but also by using physical protection like a wide-brimmed hat. If you suffer from melasma, it is even more important to wear a mineral SPF 50 daily because even visible light is known to worsen the pigmentation seen in this skin condition.