Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hair loss, a health functional food composition or a cosmetic composition, including a specific compound or a pharmaceutically acceptable salt thereof as an active ingredient, wherein the compound exhibits an excellent hair growth recovery effect in hair follicle tissues in which hair growth is inhibited without cytotoxicity, and thus hair loss can be more effectively prevented, improved, or treated.

Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hair loss, a health functional food composition or a cosmetic composition, including a specific compound or a pharmaceutically acceptable salt thereof as an active ingredient, wherein the compound exhibits an excellent hair growth recovery effect in hair follicle tissues in which hair growth is inhibited without cytotoxicity, and thus hair loss can be more effectively prevented, improved, or treated.

Abstract: There is provided a new use of a hydroxydihydrobovolide compound having effects on preventing hair loss and growing hairs. Since the hydroxydihydrobovolide compound has effects on increasing survival rates of human hair follicle dermal papilla cells and hair outer root sheath cells and also growing a length of hairs, the compound is of great value as a pharmaceutical composition or cosmetic composition for improving scalp or preventing hair loss. Further, since the hydroxydihydrobovolide compound is isolated and purified from Eucheuma cottonii that is red algae and does not induce cytotoxicity, it is stable in the body and thus can be used as a raw material for functional health food.

Abstract: The effects on human hair growth of 7?-phloroeckol (1-(3?,5?-dihydroxyphenoxy)-7-(2?,4?,6-trihydroxyphenoxy)-2,4,9-trihydroxydibenzo-1,4-dioxin) isolated from E. cava (Ecklonia cava) have been studied in cell systems. The cell-proliferation and anti-apoptotic effects on human human hair follicle dermal papilla cells (HFDPC) and human keratinocytes (human epidermal keratinocytes: HaCaT) were investigated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and western blot. The 7?-phloroeckol significantly increased HFDPC and HaCaT proliferation. With HFDPC and HaCaT, the amount of PI3K and phosphorylated AKT protein expression increased in a way which was dependent on the extent of 7?-phloroeckol treatment. Also, the levels of MEK½, phosphorylated ERK and c-Fos proteins, which are associated with cell proliferation, increased in a way which was dependent on the extent of 7?-phloroeckol treatment.

Abstract: The present invention relates to a composition for preventing skin aging containing chitooligosaccharides as an active ingredient. The invention provides a cosmetic composition for preventing skin aging caused by UV rays containing chitooligosaccharides of 1-3 kDa, 3-5 kDa or 5-10 kDa molecular weight as an active ingredient.

Abstract: The present invention relates to a hair growth stimulator based on an Ecklonia cava extract, a preparation method thereof and a cosmetic composition containing the same. Dioxinodehydroeckol is isolated from the Ecklonia cava extract. The Ecklonia cava extract prepared according to the preparation method and the dioxinodehydroeckol compound have excellent hair growth effects which are significantly higher than the effect of an Ecklonia cava extract prepared according to a conventional method.

Abstract: The present invention relates to an anti-wrinkle cosmetic composition comprising chitooligosaccharide as an effective component, more specifically, the cosmetic composition to inhibit collagen degradation induced by UV-A irradiation.