"Kid" and "Baby" formulas often contain physical (vs. chemical) blocking agents like zinc oxide and/or titanium dioxide. The plus? Physical barriers don't break down in UV like chemical barriers do, so you don't have to reapply quite as often (though they still rub off). Some also believe that the chemical barriers (and their breakdown products) can be somewhat toxic. The minus? These compounds are what gives suncreen a heavy whitish appearance. I have used the Banana Boat for Kids (yellow bottle) and Banana Boat Baby (pink bottle). Even with the same SPF and same ingredients listed, the Baby has always seemed to work better for me. Not sure why. Note that these Banana Boat products are part physical and part chemical barrier. For an all physical barrier try Neutrogena Pure and Free Baby or it's generic equivalent.
Thanks for the breakdown on physical vs. chemical sunscreens!
I will give the Banana Boat Baby sunscreen a try, once I run out of this half-gallon jug of the BB Kids stuff
As mentioned previously in this topic, titanium dioxide and zinc oxide have come along ways, in terms of how they can alter your appearance (remember the lifeguard in the movie Caddyshack, one leg completely white with sunscreen
that's over-applied, old-school zinc oxide for sure). The new zinc oxide and titanium dioxide products still take a couple shades of brown out of my tan though. The protection is much better, IMHO.
Unfortunately, as mentioned above, some of the components that make up sunscreen are toxic. In fact, almost every "active" ingredient in sunscreen has been shown to cause cancer within labratory animals.
I wouldn't worry too much about that though. They expose those animals to incredible doses for very extended periods.
Still, I don't chance it. As soon as I am finished exercising (my exercise includes flying the Rev), I'm washing the sunsreen off.