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Skin Brightening Jeju Jori, Jeju Jori(PD) Sasa Quelpaertensis Extract 1-3% Jeju Jori™ 50 10010Control Melanin Synthesis Inhibition in Melanocytes 120 100 80 60 40 20 0 % o f C o n t r o l Concentration (ppm) Melanin Index 20 female volunteers aged between 18 and 65 years old applied a cream containing 2% Jeju Jori twice a day to facial dark spot areas for 56 days. Lightness Value 2.5 2.0 1.5 1.0 0.5 0.0 δ(D56-D0)δ(D28-D0) L V a l u e DPPH Scavenging Activity Concentration (ppm) Jeju Jori Product Name_ INCI Name_ Dosage_ Jeju Jori Placebo Jeju Jori Placebo Time(Day) Time(Day) 0.0 -5.0 -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 -40.0 -45.0 -50.0 δ(D56-D0)δ(D28-D0) M e l a n i n I n d e x Story Properties of Jeju Jori Skin Brightening Effect – in vitro Evaluation Skin Brightening Effect – in vivo Evaluation on Facial Dark Spot Area Sasa quelpaertensis is a species of bamboo grass native to South Korea, and endemic to Mt. Halla in Jeju Isla nd. Young dried leaves are drunk as tea or used as folk remedies for the treatment of inflammatory diseases. S. quelpaertensis is a rich s ource of phenolic anti-oxi- dants such as p-coumaric acid. Jeju Jori developed from S. quelpaertensis demonstrates anti-oxidant and skin brightening activities. Anti-oxidant Effect – in vitro Evaluation 70 60 50 40 30 20 10 0 % o f C o n t r o l 200100 50050 Jeju Jori Sk i n Br i g h t e n i n g A n t i-oxidant 24