3,4,5-Trihydroxycinnamic acid decyl ester is widely used in the cosmetic and skincare industry due to its antioxidant properties. It helps protect the skin from oxidative stress caused by free radicals, reducing signs of aging such as wrinkles and fine lines. Additionally, it is incorporated into formulations for its ability to enhance skin hydration and improve the overall texture and appearance of the skin. The compound is also studied for its potential use in sunscreens, as it may offer protection against UV-induced damage. Its stability and compatibility with other cosmetic ingredients make it a valuable component in anti-aging creams, serums, and moisturizers. Furthermore, it is used in hair care products to increase moisture and prevent hair breakage.