<<If you use sunscreen with very high SPF, are you doing yourself more
harm than good because of the chemicals?>>
I don't know what SPF you want, but you might not need to make that choice.
For instance, Aubrey Organics has Ultra 15 sunblock which has no synthetic
PABA, protects the skin from UVA and UVB rays, and is made all of
ingredients you can recognize (aloe vera gel, rose hip seed oil, herbs,
citrus seed extract, etc.).
Another point is that certain pesticides and other toxics that eat at the
ozone layer can increase the harm the sun does and has been linked by some
to increases in skin cancer. So one way to protect our skin is to protect
our planet's skin - the ozone layer.
Best regards -