Reportedly, it has been used in the treatment of a number of health conditions which include
brittle bone, hair, teeth and
nails, white spots on
nails, gingivitis, tonsillitis, inflammation of the mucous membranes of the mouth, rheumatic disorders, edema, osteoarthritis, diabetes, acne, wounds, itchiness, rashes, burns, frostbite, chilblains, athlete's foot, cracked and tired feet, drawing out pus
from boils and carbuncles, ulcers, fistulas, herpes simplex, dyspepsia (impaired digestion), gastrointestinal conditions, cardiovascular diseases, respiratory tract infections, bronchitis, fever, malaria, bladder problems, urinary tract infection, bed wetting in children, kidney stones (nephrolithiasis), prostate problems, hemorrhoids, muscle cramps, tumors, broken bones, fractures, sprains, nose bleed and other heavy bleeding.
There is INSUFFICIENT EVIDENCE about the effectiveness of cystine supplements in the prevention or treatment of bronchitis, cystic fibrosis, chronic obstructive pulmonary disease (COPD), end - stage renal disease (ESRD), epilepsy, fibrosing alveolitis, heart related chest pain (angina) or influenza, in promoting hair growth, improving
brittle nails, boosting immunity, removing toxins
from the body, wound healing or relieving pain in rheumatoid arthritis [9].