N-Acetyl-L-glutamine is widely used in the cosmetic and skincare industry due to its excellent moisturizing properties. It helps to retain skin hydration by enhancing the skin's natural moisture barrier, making it a common ingredient in creams, lotions, and serums. Additionally, it is utilized in medical and nutritional applications as a supplement to support gut health and improve nutrient absorption. Its ability to promote tissue repair and reduce inflammation also makes it valuable in post-surgical recovery and wound care formulations. In sports nutrition, it is often included in supplements to aid muscle recovery and reduce fatigue after intense physical activity.