33 Sunscreen Tips

33 Tips Sunscreen Tips and an explanation of what sunscreens are and how to use it. Sunscreens are important skin-care products used to prevent photoaging and skin cancer. Until recently it was believed that blocking UVB radiation and sunburn were the only measures needed to prevent sun damage. The SPF rating was developed to measure the ability of a sunscreen to block UVB radiation. Now we know that UVA radiation also contributes significantly to damaging the skin. These chemicals are used in sunscreens to absorb UVA radiation. Read more