Relation between Sensory Analysis and Efficacy Evaluation of Glycolic Acid Eye Patch

Yeo, Hye-yeon; Kim, Jeong-hee

Journal of the Korean Society of Cosmetology 2019;25(5):1196-1200.
Published online October 31, 2019.

글릭콜릭산 아이패치의 효능과 관능 평가의 비교

여혜연, 김정희

Relation between Sensory Analysis and Efficacy Evaluation of Glycolic Acid Eye Patch

Hye-yeon Yeo, Jeong-hee Kim

Abstract

This study is to compare with sensory and efficacy evaluation of glycolic acid(GA) eye patch. To assess the evaluation, the eye patch containing the various concentration of GA gels, i.e. 0% GA (control), 1% (sample A), 3% (sample B) were prepared. The subjects comprised thirty women aged 20~30 years who had dark circles and were recruited from an organization via invitation. The thirty women divided into 3 groups of control, 1% GA and 3% GA(10 subjects each). Eye patches were used twice a week during the 4 weeks. The skin color of the dark circle's site was measured after applying the eye patch using spectrum colorimeter (CM-700d Minolta, Tokyo, Japan). The subject was requested to score after 4 weeks of applying on the dark circles. From the efficacy evaluation results, L^* (lightness) in 3% GA and 1% GA eye patch increased significantly in the first and second week, respectively. a^* (redness) and b^* (yellowness) decreased significantly in 3% GA eye patch from the first week but not in 1% GA eye patch. In the sensory evaluation results, There are significantly different among the groups, sample B(3% GA) had the highest satisfaction for whitening and effectiveness. Taken together, the findings highlight the potential usefulness of 3% GA eye patch for sensory and efficacy evaluation.

Key Words: Efficacy evaluation, Eye patch, Glycolic acid, Periorbital melanosis, Sensory evaluation