Contrary to popular belief, sunburns and melanoma are not the only consequences of an unprotected long-term exposure to solar irradiation. Skin ageing, carcinomas and hyperpigmentation are some of the less-known evidences of sun-induced skin damage. Ironically, the former are caused by UVB rays that correspond to only 5% of the UV radiation that reaches the Earth and only penetrate the epidermis.
UVA accounts for the remaining 95% of UV radiation and can get to the deeper layers of the skin where it triggers the mechanisms that produce ageing and other skin damages.1,2 UVA absorbers prevent UVA radiation from reaching the dermis and stop the UVA-induced damage from happening.
However, their current use is usually limited to sunscreen formulations. The new UVA absorber by Roka Furadada is suitable for oil-based cosmetic formulations and it adapts to the environmental conditions protecting when it is most needed.
Roka Smart UV® PvB 360 is an active ingredient that increases the UVA protection of cosmetic formulations over time. The molecule works as a precursor that lays dormant until UVB radiation activates it. Then, it undergoes a phototransformation that converts it into a UVA absorber.
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