I didn't think about
it and worked out in the yard for about
4 hours with no sunscreen a month or so ago and my shoulders and back got fried but nothing else burned at all. I have been wearing SPF 30 on my back since then and have worked outside for several hours each time without getting burned. But, I'm only on 10 mg right now.
Crohn's Disease, Acid Reflux/Gastritis, Hashimoto's Thyroiditis, Endometriosis, Arthritis, Depression/Anxiety. Too many meds to list them all. =)