Vitamin C Reactivates Your Skin’s “Youth Genes.”

A 2025 study at Tokyo Metropolitan Institute for Geriatrics and Gerontology found that applying vitamin C to aged skin flips on genes responsible for regenerating skin cells—resulting in noticeably thicker, more resilient skin. Vitamin C works by removing specific DNA methylation marks, essentially reprogramming skin to behave younger.

This gene-activating effect boosts keratinocyte function (the main skin cells) and restores the protective barrier that’s lost with age. Researchers say this could revolutionize how we treat thinning skin—moving beyond simple moisturizers and UV defenses to electronics-free molecular rejuvenation.

Add vitamin C topically or in quality skincare products—it could help your skin regenerate from the inside out.