Hydroxyectoin is widely used in cosmetic and skincare formulations due to its strong moisturizing and protective properties. It helps skin retain hydration by stabilizing cellular structures under stress conditions such as dryness, UV exposure, or extreme temperatures. Its ability to protect proteins and enzymes makes it effective in anti-aging products, where it supports skin resilience and reduces signs of fatigue and environmental damage. It is also used in sensitive skin and after-sun care products thanks to its soothing and calming effects. In addition, Hydroxyectoin is valued in hair care for improving moisture retention and enhancing the overall condition of hair.

Furthermore, in the cosmetics industry, Hydroxyectoin extends the shelf life of products and stabilizes other ingredients, especially in formulations sensitive to temperature or light.