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Formulation of a new broad‐spectrum UVB + UVA and blue light SPF50+ sunscreen containing Phenylene Bis‐Diphenyltriazine (TriAsorB), an innovative sun filter with unique optical properties

Accumulating evidence from numerous comprehensive studies has demonstrated that blue light, in particular high‐energy visible light, can exert a range of harmful effects on skin cells. These forms of radiation are now known to be able to trigger oxidation reactions, DNA damage, erythema and pigmentary changes, and may also be associated with photoaging. Sunscreens protecting the skin from only ultraviolet (UV)‐B and UVA rays can therefore no longer be regarded as sufficient to help prevent skin damage from sunlight, and products containing filters that can provide broad‐spectrum photoprotection are required. To meet this need, a new sunscreen formulation that provides photoprotection against solar radiation with wavelengths ranging from UV to visible light has been developed, using an innovative organic sun filter with unique optical properties: phenylene bis diphenyltriazine (TriAsorB™). This article outlines the development and characteristics of this innovative filter and describes new key results from studies performed to assess the effectiveness and safety of the filter and the new sunscreen product. The studies conducted so far demonstrate that the filter has a good human and environmental safety profile. In addition, the sunscreen, which contains TriAsorB in combination with three other UV filters to offer broad‐spectrum sun protection with a high sun protection factor (SPF50+), appears to effectively prevent multiple forms of cellular photodamage, in particular blue light‐induced oxidatively generated DNA lesions. Overall, the available data indicate that regular use of the TriAsorB‐containing sunscreen could help prevent solar radiation‐induced skin damage and the development of signs of premature skin aging, as well as photodermatoses caused or exacerbated by visible light.