reply to post by Vardoger
The ingredients don't sound too healthy though. Zinc oxide, titanium dioxide, and then...
UVA chemical ingredients
Avobenzone, Parsol 1789, Dioxybenzone (UVB, UVAII), Ecamsule, Menthyl Anthranilate, Meradimate, Oxybenzone (benzophenone, benzophenone-3),
Sulisobenzone (UVB, UVAII).
UVB chemical ingredients
Aminobenzoic acid, Cinnamates (octyl methoxycinnamate (OMC), Ethylhexyl p-Methoxycinnamate, high incident of contact irritation, non comedogenic,
widely used), Cinoxate, Dioxybenzone (UVB, UVAII), Ensulizole, Homosalate, Octocrylene, Octinoxate, Octisalate, Oxybenzone (UVB, UVAII), Octyl
dimethyl paba, Padimate O, Para-aminobenzoic acid (PABA), Salicylates (octyl salicytate (OCS), high incident of contact irritation, widely used),
Sulisobenzone (UVB, UVAII), Trolamine salicylate.
I'm sure some of these compounds, in the right ratios, could power a rocket to the moon!

edit on 10/1/12 by LightSpeedDriver because:
Typos/grammar
ETA And a vague "citation needed" wikipedia quote to round it off:
However, the use of sunscreens is controversial for various reasons. Many sunscreens do not block UVA radiation, which does not cause sunburn but
can increase the rate of melanoma, another kind of skin cancer, and photodermatitis, so people using sunscreens may be exposed to a high UVA levels
without realizing it.
Source
Seems like it's not quite an open and shut case.
edit on 10/1/12 by LightSpeedDriver because: ETA