Today, UVB rays are known to cause sunburn and redness, while the more penetrating UVA rays contribute to skin aging, DNA damage and increased risk of skin cancer. Suncare formulations have therefore evolved to offer extended protection against UVA and UVB, including UVA1 (UVA-I), responsible for over 80% of solar UV received on Earth.

However, recent studies have demonstrated the harmful effects of UVA1 on skin lesions. Other articles, meanwhile, highlighted the lack of sunscreen products with ultra-long UVA protection (370-400 nm), which could be solved by a new UV protection including chemical or natural ingredients.

Given that there is no method specifically dedicated to Long UVA (or Ultra-Long UVA), nor regulated to guide consumers, WENEOS has pioneered the development of an in vitro method to assess protection in Long UVA (Ultra-Long UVA). It is a fully validated and impartial independent test.

We can assess the sun protection of your products in full compliance with official methods, or claim the properties of your products through exclusive tests developed by WENEOS.