L-Cystine is one of the most powerful antioxidants and anti-aging nutrients, because it minimizes the cross linking of those damaging free radicals that cause degeneration! That’s why it’s called the body’s #1 free radical scavenger, or “Mr. Clean”! L-Cystine is so efficient in this role that it even helps the body rid itself of the harmful effects of free radicals formed from smoking and drinking, protecting you against their harmful effects ... that’s why it’s known as the “hangover remedy.” In addition, L-Cystine is one of the most powerful immune enhancers and promoters of wound healing, since it activates white blood cells in the immune response. L-Cystine is also very useful to anyone with liver disease or skin disorders such as psoriasis or eczema.