Researchers at RAFT have developed technology to accurately measure the effects of UVA, UVB and visible light on the skin. Application of this technology could lead to more accurate testing and labeling of sun-screens. The research found that if cream is badly applied to the skin it dramatically lowers the level of protection it provides. It also found ways of measuring protection against UVA rays, a factor not currently used in SPF labeling, which would allow more accurate testing of products which protect against the sun’s ageing and carcinogenic effects on the skin.
The testing process measures UV-induced free radicals in skin, providing quantifiable, comparative data, based on controlled laboratory-condition tests, improving on current testing which is carried out on volunteers without any control sampling. By using skin samples, the technique provides data for accurate grading of the product’s efficacy. The technique has also revealed that current filter, labeling and usage of skin protection creams can minimize protection against UVA-induced free radicals.
RAFT is looking for collaboration and licensing to manufacturers worldwide in order to develop a three year programme to further test the technique and increase understanding of the effects of prolonged sun exposure. This could lead to a new generation of sun creams providing more effective protection. The research results coincide with the development of EU standards on product information and protection which is currently taking place with the participation of RAFT.