research Clinical study on the efficacy and tolerability of an oral supplement based on arginine, l-cystine, zinc and B6 vitamin (Cystiphane®) in patients with telogen effluvium
In this study, researchers evaluated an oral supplement containing arginine, l-cystine, zinc, and vitamin B6, finding it effective as an adjuvant treatment for telogen effluvium, as indicated by improved hair quantity and diameter after three months in 18 patients.