L-Cystine is used as an antioxidant, protecting tissues against radiation and pollution. It finds application in protein synthesis. It is required for utilization of vitamin B6 and is useful in healing burns and wounds. It is also is required by certain malignant cell lines in the culture medium as well as for the growth of certain micro-organisms. It is useful in the stimulation of hematopoietic system and promotes the formation of white and red blood cells. It is an active ingredient in medications used to treat dermatitis.
Chen, L.; Zheng, Z.; Wang, J.; Wang, X. Mesoporous SBA-15 end-capped by PEG via L-cystine based linker for redox responsive controlled release. Microporous Mesoporous Mater. 2014, 185, 7-15.
Liu, M.; Zhang, L.; He, X.; Zhang, B., Song, H.; Li, S.; You, W. l-Cystine-assisted hydrothermal synthesis of Mn 1- x Cd x S solid solutions with hexagonal wurtzite structure for efficient photocatalytic hydrogen evolution under visible light irradiation. J. Mater. Chem. A 2014, 2 (13), 4619-4626.