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Asian J Beauty Cosmetol > Accepted Articles

doi: https://doi.org/10.20402/ajbc.2017.0169    [Accepted]
Effects of Scenedesmus deserticola JD052 Extracts on UV-induced Skin Irritation
Jun Seok Baek, Se-eun Jin, Seung Hye Kang, Chansun Park, Jae Hoon Jeong, Sang Won Yi, Young Soo Kim
Labio Co., LTD, Seoul, Korea
Corresponding author:  Young Soo Kim ,Tel: 82 2 2113 0529, Fax: 82 2 2113 0506, Email: msri13@labio.kr
Received: July 31, 2017;  Accepted: November 10, 2017.  Published online: February 13, 2018.
The aim of this clinical study was to evaluate the effects of toner, lotion, and cream containing Scenedesmus deserticola JD052 (JD052) extract on UV-induced skin irritation, dermal density, facial wrinkles, and dermal moisture.
22 female volunteers over 29 years of age were selected on the basis of predetermined inclusion and exclusion criteria. Every morning and night for 4 weeks, each subject washed their face and left upper arm and then applied the same amount of each test material on these areas in the following sequence: toner, lotion, and cream. The following effects were then evaluated: the skin soothing effect on UV-induced skin irritation using a solar simulator and the ANTERA 3D Dermal Imaging Device; dermal density improvement using the DUB®SkinScanner; facial wrinkle improvement using the ANTERA 3D; and dermal moisture improvement using the MoistureMeterD Compact.
After 2 and 4 weeks, respectively, of application of the test materials, the a* value, which indicated skin redness, was reduced by 5.30% and 5.54%, dermal density was increased by 12.08% and 21.15%, and the wrinkles small value, which indicates the number of skin wrinkles, was decreased by 5.58% and 8.35% compared with pre-treatment levels. Furthermore, dermal moisture was increased by 23.54%, 4.32%, and 6.48% immediately, 2, and 4 weeks, respectively, after application of the test materials compared with pre-treatment levels.
Toner, lotion, and cream containing JD052 extract were found to have a skin soothing effect on UV-induced skin irritation and to improve dermal density, facial wrinkles, and dermal moisture.
Key words: Scenedesmus deserticola, Microalgae, Skin improvement, Soothing, Anti-wrinkle
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