Abstract Objective: To explore the effects of Vitamin C supplementation on skin health, focusing on collagen synthesis and skin hydration in adults.

Context: Vitamin C is essential for collagen biosynthesis, a key protein for maintaining skin structure and elasticity. It also acts as an antioxidant, protecting the skin from damage caused by ultraviolet (UV) rays and environmental pollutants. Vitamin C deficiency is linked to poor skin healing and premature aging.

Methods Used: A randomized clinical trial involved 100 participants aged 35-60 years with varying degrees of skin dryness and signs of aging. Participants were divided into two groups: one received 1000 mg of Vitamin C daily, while the other received a placebo for 8 weeks. Skin hydration levels, collagen content, and wrinkle depth were assessed through dermatological evaluations and skin biopsies at the beginning and end of the study.

Researchers' Summary of Findings: Participants who received Vitamin C supplements exhibited a significant increase in skin collagen content, with higher levels of procollagen type I and elastin. Skin hydration improved by 15% compared to the placebo group, and there was a noticeable reduction in wrinkle depth after the supplementation period.

Health Implications: Vitamin C supplementation promotes collagen synthesis and enhances skin hydration, contributing to healthier, more resilient skin. These findings suggest that Vitamin C may be an effective intervention for individuals seeking to improve skin appearance and slow down the aging process.