1.Penetration (blue arrows) is the entry of a substance into a particular layer or structure such as the entrance of a compound into the stratum corneum.

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Presentation transcript:

1.Penetration (blue arrows) is the entry of a substance into a particular layer or structure such as the entrance of a compound into the stratum corneum. 2. Permeation (green arrow) is the penetration through one layer into another, which is both functionally and structurally different from the first layer. 3. Reabsorption( Pink arrow)- uptake of system into the vascular system

Skin creams classified as: 1.Make up creams( o/w) emulsion- vanishing creams 2.Cleansing creams-( w/o) emulsion 3.Creams for winter ( w/o emulsion )- cold cream 4.Creams for dry skin 5.All purpose cream 6.Night cream 7.Skin protective and hand creams

Basic raw materials used in skin creams Water Oils, fats and waxes Hydrocarbon s derived from petroleum Humectants Emulsi fying agents

IngredientWt. % Beeswax8.00 Mineral oil (paraffinum liquidum) Lanolin3.00 Borax0.20 Water (aqua)qs Pond’s Type o/w Face Cream