I have received many questions about sunscreen lately. Here are three truths and one fallacy about the summer’s hottest product—based on your queries. Source: Dr. Ellen Marmur, a dermatologist in New York City, author of Simple Skin Beauty: Every Woman’s Guide to a Lifetime of Healthy, Gorgeous Skin.
1. Sunscreen expires. It’s usually good for three years. Hopefully, you’ll use it up long before!
2. Dogs can use sunscreen meant for humans. And they should (consider a spray for your pup) if they have sparse fur, skin conditions like alopecia, or you live in extreme conditions (say, at a high altitude).
3. You can use sunscreen that’s meant for your body on your hair. It will keep it from drying out in the sun. Again, consider a spray formula.
4. And now for the big fallacy: While there are many great uses for coconut oil, sunscreen is not one of them. I repeat, do not use coconut oil as sunscreen—unless you want a burn.