The Garden of Naturalsolution is a leading company in the natural cosmetic ingredients market in Korea.
It specializes in the development and supply of an extensive range of natural ingredients for cosmetic
and food industries since 2004.
|Common name||Oolong tea|
|Scientific name||Camellia sinensis|
|INCI name||Camellia Sinensis Leaf Extract|
|Korean Cosmetic ingredient name||녹차추출물|
|Used part||Leaf /|
|Potential benefits in cosmetics||anti-inflammatory / anti-oxidant / skin brightening /|
|Known active compounds||thearubigin, theaflavin, caffeine, catechins|
Oolong tea, literally meaning ‘black dragon tea’, is a traditional Chinese tea produced through a uniqueprocess. It involves withering the plant under a strong sun and oxidizing before curling and twistingleaves. This semi-fermented or semi-oxidized tea has a unique taste that is quite distinct from thetraditional black or green teas. As green tea is fermented to oolong and then to black tea, polyphenolcompounds including catechins are polymerized into a variety of theaflavins, which result in differentbiological activities of those teas.
Recently, the effects of oolong tea extract on skin whitening have been reported. The oolong teaextract inhibited tyrosinase activity in vitro, and repressed intracellular tyrosinase at the mRNA level.Also, it eventually showed inhibition of pigmentation induced by UVB in guinea pigs. Phenolic acids orcatechol derivatives of the tea seem to inhibit tyrosinase activity to regulate melanogenesis.