The Food and Drug Administration regulates the efficacy sunscreens can claim and standards have become increasingly strict over the years. Use a shot-glass-sized amount of sunscreen to protect your body and a nickel-sized amount for your face and neck for every two hours spent in the sun, writes Kerry Hanson.
Source: The Conversation, May 25, 2017.
We can still enjoy being in the sun. Unlike how we tanned in the pre-1980s, we just need to use the resources available to us, from long sleeves to shade to sunscreens, in order to protect the molecules in our skin, especially our DNA, from UV damage.
INSIGHTS: Sales representatives should have SPF 50 sunscreen available when entertaining customers on outings. They will thank you later.