I make my own lip balm and lotion bars, using my regular LB recipes with coconut oil, beeswax and other natural SPF oils, then add in zinc oxide nano-particle not micronized. @ 30% per oz oils (SPF of close to 30, but hasn't been lab tested). No flavoring, and sometimes add a light mineral colorant. My daughter and her husband use it when they do marathons and love it, won't use anything else because it "doesn't run when we do". It goes on pretty white, but will blend well if rubbed in.
Some cautions - its MESSY to make and MESSY to clean up. Also, don't sell it unless you have all the government required hoo haa - claiming anything is SPF has A LOT of requirements and, someone will correct me if I'm mistaken, but it may be considered a drug.