Amorepacific Corporation

Snu Rdb Foundation

Eui Dong Son

Ji Hyun Kim

Sun Young Park

Jin Young Lee

Tae Ryong Lee

Hyun Jung Choi

Hyoung June Kim

Jin Sup Shim

Jin Ho Chung

Soo Mi Ahn

Yong Joo Na

Han Kon Kim

Min Jung Lee

Eun-Gyung Cho

Hui Kyoung Chang

Dae Jin Min

Hyang Tae Choi

Sung Hoon Lee

Hyeon Chung Kim

Kyu Han Kim

Dong Wook Shin

Seong A Cho

Byeong Bae Jeon

Gae Won Nam

Ji Hyun Bae

Min Sik Choi

Min Jung Chae

Seon Pil Jin

Ju Yearl Park

Ji Yong Jung

Inn Gyung Oh

Chi Hyun Park

Yong Ju Na

Hyae Kyoung Kim

Eun Young Seo

Hyun Sun Yoon

A skin external composition containing 1,2,3,4,6-penta-O-galloyl-&#x3b2;-D-glucose (hereinafter referred to as 'PGG') and its use to improve moisture balance of skin are disclosed. The skin external composition, due to containing PGG, stimulates the formation of filaggrin in keratinocytes, increases loricrin and involucrin expression, thereby stimulating the formation of a normal keratin layer, and as a result, can strengthen the skin barrier function to provide an excellent skin moisturization improving effect. Thus, the composition is effective in improving moisture balance of skin. A method for moisturizing the skin using the composition is also disclosed.

Skin external preparation composition for moisturizing skin containing 1,2,3,4,6-penta-O-galloyl-&#x3b2;-D-glucose

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.

Method for screening for sunlight protection functional material and method for evaluating sunlight protection effect

Provided is a cosmetic composition for improving skin elasticity containingextract and a polymersome in which an anti-aging peptide is stabilized as active ingredients. The cosmetic composition of the present disclosure is efficacious in improving skin wrinkles, restoring skin elasticity and increasing skin water content, and thus is effective for improving skin elasticity.

Cosmetic composition for improving skin elasticity

The present invention relates to a method for calculating a thermal protection factor, wherein the method comprises the steps of: applying heat to a first area coated with a thermal protection material, and a second area not coated with the thermal protection material; measuring the respective saturation temperatures of the first area and second area; calculating a first energy by dividing the energy corresponding to the heat applied to the first area by the saturation temperature of the first area; calculating a second energy by dividing the energy corresponding to the heat applied to the second area by the saturation temperature of the second area; and calculating the thermal protection factor of a thermal protection material by dividing the first energy by the second energy or dividing the difference between the first energy and the second energy by the first energy.

Method for calculating a thermal protection factor

Growing community of inventors

Yongin-si, South Korea

Eui Dong Son