Summary

Some people are so worried about sunscreen that they're swapping SPF 50 for beef tallow. Yes, the fat traditionally used to make roasted potatoes is now being promoted online as something you can spread on your skin before going into the sun. Coconut oil and olive oil have their supporters, too. Meanwhile, other social media creators warn that conventional sunscreens contain dangerous chemicals, interfere with our hormones or prevent us from making vitamin D.

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