A double-blind randomized split-face controlled trial of the efficacy of 5% centella asiatica serum versus 7% centella asiatica serum on the treatment of periorbital wrinkles
Double-blind randomized split-face controlled trial of the efficacy of 5% centella asiatica serum versus 7% centella asiatica serum on the treatment of periorbital wrinkles
Abstract:
Introduction: Nowadays people pay attention seriously on the wrinkle decrease as there are many methods to reduce the sign of aging. Extract from Centella Asiatica were found to increase collagen production, reduce collagen degradation, and provide anti-oxidative effect.
Objective: To study on the efficacy of 5% Centella asiatica Serum comparing to 7% Centella asiatica serum on the treatment or periorbital wrinkles.
Materials and Methods: This research studied 15 female subjects who had periorbital wrinkles. 5% Centella asiatica Serum was applied around an eye, either right or left, while 7% Centella asiatica Serum was applied around another eye on each subjects twice a day at morning and evening for 12 weeks. Assessments of wrinkles by Rao-Goldman 5-points visual scoring scale by a researcher and measurement of wrinkles by Visioscan®VC98 were done at the beginning, 4th week, 8th week and 12th week of the study. Subjects would also evaluate level of self-assessment after use of the product and assessment of side effects when the research was finished.
Results: In 12 weeks, the efficacy of 5% Centella asiatica serum on decreasing periorbital wrinkles is comparable to that of 7% Centella asiatica serum without significant statistical difference. The efficacy of 5% and 7% Centella asiatica serum showed a significant reduction of the eye wrinkles within 4 weeks. (Measured by Visioscan®VC98) The evaluation level of self-assessment after use of the product, Mean difference of wrinkles 7% Centella asiatica Serum the better than 5% Centella asiatica Serum. There was no side effect in 5% and 7% Centella asiatica serum found in this study.