p. acnes populations in these sites correlated significantly with the total amount of lipid produced ( r = 0.77 ) as well as with di- and triglycerides ( r = 0.68 ) , squalene and wax esters ( r = 0.72 ) , cholesterol and cholesterol esters ( r = 0.67 ) , and free fatty acids ( r = 0.67 ) .
C0008377
cholesterol
C0008387
cholesterol esters