Is There Such a Thing as Cat-Safe Sunblock?

Dear Most Esteemed and Knowledgeable Kitties: I play mom to two furballs of the feline purrsuasion, year-old siblings Egon and Astrid. Both have dilute genes from their mom. Astrid got lucky and her outer ears are charcoal gray. Egon is less lucky, with pale ginger fur on his whitey-white ears. He got a sunburn recently and the extra [...]