Loading patent…
AssigneeAmorepacific Corporation
InventorsHyoung June Kim, Min Sik Choi, Ji Yong Jung, Ju Yearl Park, Tae Ryong Lee, Dong Wook Shin, Eui Dong Son, Min Jung Chae
Estimating the term…
Unlike a conventional method for evaluating a degree of ultraviolet protection through visual evaluation, the disclosed method for measuring a sunlight protection function can accurately and objectively measure and determine a degree of sunlight protection by measuring a change due to a material to be measured with respect to an expression amount of skin tissue antimicrobial peptides (AMPs) in skin cells, which decrease from exposure to sunlight, and/or a generation amount of S-nitrosylated protein. Additionally, the disclosed measurement method can determine whether blue/violet light of wavelengths of 400-500 nm, which induces the most skin damage among visible rays, is blocked and provide a more specified sunlight protection effect evaluation result. Moreover, by using the disclosed measurement method, a degree of sunlight protection can be indexed, and a sunlight protection composition for protecting normal skin from the blue/violet light can be provided.
A method for measuring sunlight protection function comprising the step of measuring the change caused by a test material in at least one of expression of antimicrobial peptides (AMPs) and production of S-nitrosylated proteins in skin cells after irradiating sunlight in comparison with the skin cells before irradiating sunlight, which are reduced by sunlight radiation,
Dependencies are inferred from the claim text.