[Quantification of sebaceous excretion in volunteers: influence of chronological age, sex and race].

The "sebum" secretion was evaluated in caucasian, black, yellow and mullato people of different ages by the osmic acid technique utilizing a semi-quantitative scale of score ranging from 0 to 9 points. The results have shown: 1) there is significant difference between to "sebum" secretion (CL = casual level or SER = sebum excretion rate) of males and females greater than or equal to 60 years old, regardless the race; 2) males and females of each age subgroup have shown no difference of "sebum" secretion (NC or TRE) regardless the race; 3) male volunteers of different races have shown no difference secretion regardless the age and the race. On the other hand, females greater than or equal to 60 years old, regardless the race have shown low "sebum" secretion tham of 15-19 and 50-59 years old; 4) no circadian, ultradian and seasonal rhythm of "sebum" secretion were verified.