Mounting evidence underscores the impact of the different wavelengths of sunlight on the skin. 

A new study published in the Journal of European Academy of Dermatology and Venereology aimed to establish customized recommendations of sunscreen according to the skin phototype and dermatoses—which is now possible due to advances in the filters and formulations of sunscreens.

This study entailed a selective literature search performed by an international expert panel, focusing on the type of sunscreen to be recommended for – photoaging, skin cancers, photodermatoses, pigmentary disorders and skin inflammatory disorders. 

The consensus stated that ultraviolet B (UVB) is of particular concern for lighter skin types as it imposes a high risk of sunburn, DNA damage and skin cancers. Thus, UVB protection is mandatory for these individuals. Whereas, darker skin may be naturally better protected against UVB, and is more prone to hyperpigmentation induced by visible light (VL) and UVA. Meanwhile, protection against UVA, VL and infrared A can be helpful for all skin phototypes as they penetrate deeply and cause photoaging. Moreover, long wave UVA1 plays a critical role in pigmentation, photoaging, skin cancer, DNA damage and photodermatoses. 

It was inferred that adapting the formulation and texture of sunscreens to the type of skin and dermatoses is essential.

Source: Journal of European Academy of Dermatology and Venereology. 2021 Mar 25. doi: 10.1111/jdv.17242.