Hm, I don't know what's in the Cetaphil- I bet you find the ingredients online, though. It's stable and it has an okay PPD for an US s/s, too (around 8).
The best stable US s/s would be the Neutrogena Dry Touch SPF55. PPD is at least 12. I couldn't use that except in winter or grey weather (or I get discolorations, freckles...), but if you wear sunglasses and a hat, it should work.The only stable Neutrogenas are those with helioplex.
Hey, get the 2%BHA liquid! It works great for many people!
