@difficultdays thank you for making that distinction. Some people still refer to sun tan lotion although sun screen/sun block is the preferred term for the lotions sold today as they provide layers of protection from harmful UV rays.

I don't see that Mayo Clinic has a postion on self-tanning applications but I do know the FDA has approved those that use dihydroxyacetone (or DHA in abbreviated form) as this basically stains the skin although it's important to note that it does not offer any UV protection. It is also important that for all of us who have treated for skin cancers, the wisest advice is to first check with your medical provider as to what their recommendation is for your individual consideration.

Looks like this aligns with what @marcefromargentina suggested also. Do you feel comfortable discussing with your doctor?