Do the Repchage Hydra Soleil products provide protection against UVA rays?
SPF is based on UVB only, so a high SPF doesn’t necessarily mean better protection. At this point there is no approved protocol for measuring the amount of protection afforded in the UVA range. There are more sunscreen actives on the market that screen at UVB wavelengths, because of historical reasons: During the first decades of sunscreen development people wanted to tan, so narrow spectrum actives were desired, that protected against burns in the UVB range, but allowed tanning in the UVA range. Because of our evolving understanding, we now want broad-spectrum screens that protect not only in UVB but as much as possible in UVA. In the Hydra Soleil line this is achieved by including Titanium Dioxide, which physically reflect rays and utilizing Oxybenzone in the SPF 30, which adsorbs and transforms UV radiation. Even with the use of sunscreens, free radicals do form, leading to damage to DNA, fibroblasts, cell walls, etc. In the Hydra Soleil line significant additional protection is aff
