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In Vitro Study No: 673

METHODS

Chemical Conc. (mg/ml)Volume (ml)Loading (mg/cm2)VehicleSpeciesMembraneSiteArea (cm2)Cell TypeReceptor FluidTemp. (oC)Temp. MeasuredExposure Time (h)Study Length (h)OccludedAnalytical Method
Coumarin0.20.0050.0037EthanolHumanFull Thickness SkinBreast0.32Flow-throughHEPES buffered HBSS & 0.5% gentamycin32Skin72721Radiolabelled (14C)

RESULTS

% Recovery+/-% In Stratum Corneum+/-% in Viable Skin+/-% Penetrated+/-% Absorbed+/-s-s-flux (mcrg/cm2/h)+/-kp (cm/h)nLag Time (h)
85.25.8 3.98.5 74.5 669.60.1438  90.8

NOTES

3 replicates of skin from 3 humans was used in this study.

REFERENCE

Comparative In Vitro Skin Absorption And Metabolism Of Coumarin (1,2-Benzopyrone) In Human, Rat and Mouse (1997) Toxicol. Appl. Pharmacol., 145 :34-42