Broad-spectrum sunscreens protect your skin by reflecting and/or absorbing damaging UVA/UVB rays which we are exposed to on a daily basis through daylight. These damaging rays can cause discolouration, sunburn, photo-aging and increase your risk of skin cancers. By combining an antioxidant serum and a Broad-spectrum sunscreen you will provide your skin with the most powerful protection. Sun protection should be applied daily AM even if you are staying indoors.