epidermal acylglucosylceramides ( agc ) and acylceramides ( ac ) cause aggregation and stacking of stratum corneum lipid liposomes formed from a lipid mixture containing epidermal ceramides ( 40 % ) , cholesterol ( 25 % ) , palmitic acid ( 25 % ) , and cholesteryl sulfate ( 10 % ) .
C0221921
stratum corneum
C0014520
epidermal