Sunscreen is extremely important to our skin health and appearance. UV light is responsible for about 80% of skin aging, which includes skin discoloration, hyperpigmentation (dark spots), leathering, and wrinkles and fine lines. UV exposure also causes DNA damage in skin cells, which may lead to cancer. Additionally, sun exposure will exacerbate skin conditions such as melasma. Sunscreen protects against both photo-aging (sun-related aging) and cancer, blocking up to 99% of all UV rays. Since summer is around the corner, I thought tackling some of the basics about sunscreen would be appropriate. This is a longer post with lots of details that I hope readers will find helpful. Summary and product recommendations are at the end of the post.  Continue reading →