Although no precise link has been demonstrated between diet and the quality of sebum secreted, there appear to be precise correlations between the sebaceous secretions and oral intake of some sulfhurized amino acids. Recent data have once again provided evidence of the antiseborrheic effect on the scalp from the oral intake of gelatin-cystine. In fact, as well as stimulating the keratinogenetic process of hair growth , gelatin-cystine Bioesse (Pharmaceutical line) has been shown to reduce seborrhea of the scalp by about 30%. The sebostatic activity, demonstrated experimentally on a group of patients affected by androgenic alopecia, increases with length of treatment reaching a maximum after ninety days of taking 4 tablets a day of the experimental product. Gelatin-cystine (MAVI international patent) also appears to be able to increase assimilation of cysteine-cystine at the level of the hair matrix, thus increasing resistance to pulling. It has also been revealed that over a period of three months, in individuals subjected to treatment with (Gelatin-cystine) Bioesse there is an average increase of 50% in hairs emerging from the same follicle orifices. These results supported and support regular use in all forms of alopecia.