Guenaelle Le Dantec

Sep 16, 2023 | onlinelibrary.wiley.com | Akimichi Morita |Sophie Seité |Delphine Kerob |Guenaelle Le Dantec

1 BACKGROUND The complete range of ultraviolet (UV) rays is composed of UVC (100–290 nm), UVB (290–320 nm) and UVA wavelengths (320–400 nm) that include UVA2 or shortwave UVA (320–340 nm) and UVA1 or longwave UVA (340–400 nm). UVA1 rays account for more than 80% of the solar UV reaching the earth.1, 2 Less energetic than UVB or UVA2, UVA1 rays have a higher skin penetration potential and produce effects in all cutaneous layers.