Yes, everyone—even children—need sunscreen if they will be outside more than 15 minutes, and you should reapply every so often as sweat and other waters washes it right off. I have worked in skincare for 14 years and lost my mother to melanoma cancer. Please read up on ingredients as some sunscreens have a small level of toxicity. It is best to try to opt for natural shade IF IT WILL COVER YOU COMPLETELY. Find lightweight long-sleeved clothing that will wick moisture. Wear a wide-brimmed hat. Buy a sun sail to hang up where you will be working. Gardening gloves, solar gloves and sleeves-there are a lot of options but PROTECT YOUR SKIN. The damage starts before you see it. I don’t even follow my advice well, but I DO try to follow it, and I will say in all honesty my skin looks so much better than my peers because I makes regular attempts to cover up.