Not all UVAPF testing methods were created equal.
A by-product of tanning, beta-endorphin, may be responsible for addictive behaviour – at least in animal models.
Curious as to how two products with the same amount of active sunscreen ingredients can have different SPF and PPD ratings?
If you’re using makeup with a chemical based sunscreen – careful! Some of the pigments can be degrading the chemical sunscreen avobenzone – rendering its protection useless.