Zinc Oxide Uva And Uvb Protection

To achieve high spf values american sunscreen manufacturers must add uvb filters which drive up the spf value but result in a poor balance between uva and uvb protection.

Zinc oxide uva and uvb protection. Solar uv radiation uvr is composed of uvb 290 320 nm and uva 320 400 nm wavelengths. Today zinc oxide is added to many more skincare products beyond sunscreen it s also an ingredient in beauty lotions or foundations including. Short wavelength solar rays of 290 320 nm mostly absorbed by the ozone layer. The active ingredient in badger sunscreens the mineral zinc oxide offers excellent uva protection.

Zinc oxide provides broad spectrum uva and uvb protection while the inclusion of titanium dioxide ensures the formula is lightweight and adept at minimizing excess oil. Zinc oxide has been found to offer protection against broad spectrum ultraviolet rays uva uvb which is not always the case with chemical sunscreens that only block one type of uv light. We make our sunscreen solution as easy to apply as possible providing a simple to use brush formula that can be applied and reapplied over your makeup throughout the day. Even some products labeled broad spectrum uva uvb protection have not always provided good protection against uva rays.

Uvb rays have different strengths depending on sun s location and can be reduced by clouds. Although many of the available ingredients filter uvb rays effectively fewer cover the uva spectrum. Titanium dioxide probably gives good protection but does not completely cover the uva spectrum as early 2000s research suggests that zinc oxide is superior to titanium dioxide at wavelengths 340 380 nm. Only zinc oxide and avobenzone protect against shorter and longer uva rays.