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Cold Cream & Vanishing Cream Assignement (Industrial Pharmacy)

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Cold Cream & Vanishing Cream Assignement (Industrial Pharmacy)

  1. 1. Cold Cream Cold crems are water-in-oil or oil-in-water type emulsions added with certain fats & perfuming agents. Applied on skin to provide smoothness & remove makeup. #. Ideal Properties: - Have a low sensitization index. ➢ Elegant in appearance. ➢ Should be nondehydrating, non-greasy & non-staining. ➢ Should be miscible with skin secretion. Not cause irritation to the skin. Formulation of Cold Cream The ingredients for the formulation of cold creams as follow: - Formula Quantity for 100gm White beeswax (emollient) 20gm Mineral oil (lubricant) 50gm Distilled water (vehicle) 28.8gm Borax (buffer) 0.7gm Perfume (Odour) 0.5gm
  2. 2. #. Preparation of Cold Creams: - 01). Beeswax melted in container on water bath maintained at 70o C & added with mineral oils; this is mixture A (oily phase). 02). Water is heated in another container at same temp. & added with borax; this is mixture B (aqueous phase) 03). Mixture B slowly added to the mixture A with stirring to form a creamy emulsion. 04). At the last, the preparation is brought down to 40o C added with a suitable perfume.
  3. 3. Vanishing Cream Also known as “Day creams”, as they are applied in the day times. These creams provide emollient & protective action to the skin against environmental conditions. They are used to hold powder on the skin & to improve adhesion. #. Ideal Properties: - High melting point. Should be pure white in colour. Should possess a very slight Odour. A less amount of iodine. Formulation of Vanishing Creams The ingredient used for formulation of vanishing creams as following: Ingredients Example 01). Main Ingredient Stearic acid [Control cream consistency] 02). Humectants Glycerin, sorbitol, propylene glycol 03). Alkalis Potassium hydroxide, sodium hydroxide, carbonates (Potassium & sodium carbonate), Ammonia, Borax 04). Emulsifying Agent Triethanolamine soap, amino glycol soap or glyceryl monostearate 05). Purified water Distilled & Deionized 06). Preservative Methyl paraben & propyl paraben 07). Perfume Geranium, sandal wood, lavender oil.
  4. 4. Preparation of Vanishing Cream Formula: 01 Method: - Stearic acid is melted by eating on a water bath potassium hydroxide dissolved in water, glycerin is added, & the mixture is heated at 75o C temp. this method mixture is slowly added to the melted stearic acid with constant stirring. The obtained mixture is maintained at 40o C temp. added with a suitable perfume. Formula:02 Formula % Triethanolamine 2.0 Stearic acid 17.0 Lanolin 1.0 Borax 4.0 Glycerin 5.0 Water 70.5 Perfume 0.5 100.0 Method: - Lanolin & stearic acid are method. A hot solution of borax, triethanolamine, glycerin, & water is prepared. The alkali solution is added to stearic acid & stirrer to emulsify. When the temp. drops down to 40o C, a suitable perfume is added. Formula % Stearic acid 24.0 Potassium hydroxide 1.0 Water 64.0 Glycerin 10.5 Perfume 0.5 100.0

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