"You probably know that you need to wear sunscreen. And you probably know the effects of not doing so: Too much exposure to UV rays can hasten signs of aging, worsen skin conditions and even lead to skin cancer — not to mention leave you with a painful burn. But when and how much sunscreen should you be applying? Does it matter what kind? And what do you do if, despite your best efforts, you do get a burn? Here, skin-care and cosmetic experts share their advice for protecting your body, from head to toe."
This is a helpful article from the NY Times. Download How to Apply Sunscreen Head to Toe Like an Expert - The New York Times