title: Age and sex variation in skin surface lipid composition and sebum excretion rate.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002784:Cholesterol / Q000032:analysis; D004952:Esters / Q000032:analysis; D005230:Fatty Acids, Nonesterified / Q000032:analysis; D005260:Female; D006801:Humans; D006868:Hydrolysis; D008055:Lipids / Q000032:analysis*; D008297:Male; D008598:Menstruation; D008875:Middle Aged; D011627:Puberty; D012629:Sebum / Q000378:metabolism*; D012636:Secretory Rate; D012737:Sex Factors; D012867:Skin / Q000032:analysis*; D013185:Squalene / Q000032:analysis; D013261:Sterols / Q000032:analysis; D014280:Triglycerides / Q000032:analysis; D014885:Waxes / Q000032:analysis
chemical_list: D004952:Esters; D005230:Fatty Acids, Nonesterified; D008055:Lipids; D013261:Sterols; D014280:Triglycerides; D014885:Waxes; D013185:Squalene; D002784:Cholesterol