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In Vitro Study No: 1210

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
Urea0.0008540.30.00023WaterRatFull Thickness SkinBack1.13StaticSaline & 0.055 Thimerosal32Water Bath  1Radioolabelled (14C)

RESULTS

% Recovery+/-% In Stratum Corneum+/-% in Viable Skin+/-% Penetrated+/-% Absorbed+/-s-s-flux (mcrg/cm2/h)+/-kp (cm/h)nLag Time (h)
            0.00016615

NOTES

Male Osborne-Mendel Rats were used. The concentration of urea added was given as 854ng/mg. The top of the chamber was sealed with Parafilm to prevent evaporation of the vehicle.

REFERENCE

Differences In Permeability Of Rat Skin Related To Sex And Body Site (1983) J. Soc. Cosmet. Chem., 34 :127-135