DL-Cysteine hydrochloride is widely used in the food industry as a dough conditioner and flavor enhancer, improving the texture and shelf life of baked goods. In pharmaceuticals, it serves as a precursor for synthesizing other compounds and is utilized in certain medications to treat conditions like acetaminophen overdose due to its antioxidant properties. The cosmetic industry employs it in hair care products to strengthen and protect hair, as well as in skin care formulations for its antioxidant and anti-aging benefits. Additionally, it is used in animal feed as a nutritional supplement to support growth and health.