This study is two arms, randomized, double-blind controlled trial. There will be two study sites and 35 eligible participants at each study site will be enrolled with the expectation of having 30 participants completed per study group. Particants will be randomly allocated to use one of the two study products defined in the trial protocol for two months. Up to three study visits will be made by the participant over a 2-month period. All relevant data will be captured and recorded into CTMS (Clinical Trial Management System). The data will be analyzed and reported after the completion of the study.
The goal of this clinical trial is to study the efficacy of collagen supplement on the moisture content and elasticity.~70 participants of 30-50 years old women will be enrolled from two study sites and randomly assigned to use two products (study product plus collagen supplement and placebo product without collagen supplement) for 2 months.~Researchers will compare the two groups to validate the assumption that there is significant improvement on skin anti-aging effect for participants using study product plus collagen supplement.