Human clinical trials to evaluate the efficacy and safety of Gynostemma pentaphyllum leaf extract for improving skin health (skin photoaging and skin hydration)

INTERVENTION: Dietary Supplement : Test: Gynostemma pentaphyllum leaf extract 340 mL/day (340 mL as the test ingredient Gynostemma pentaphyllum leaf extract), taken orally once daily, 1 bottle at a time Control: Placebo 340 mL/day (0 mL as the test ingredient), taken orally once daily, 1 bottle at a time CONDITION: Not Applicable PRIMARY OUTCOME: Crow's feet (Device evaluation) Skin elasticity skin moisturizing SECONDARY OUTCOME: Amount of dead skin cells Skin roughness Transepidermal water loss INCLUSION CRITERIA: 1. Men and women aged 25 to 60 at the time of screening 2. Individuals with a skin moisture content of 48 A.U. (Corneometer value) or lower and eye wrinkles of grade 3 or higher 3. Individuals who have received a detailed explanation of this clinical trial, fully understood it, voluntarily decided to participate, and provided written consent to comply with precautions during the trial period