Vanishing creams - Copy.pptx

presentation on vanishing cream

1. Vanishing creams

2. Definition Greaseless creams Vanishing creams are oil in water type of emulsion which when applied to skin leaves an almost invisible layer on skin. Also the creams which spread easily and and seem to disappear rapidly when rubbed on skin are known as vanishing creams. These creams are made with water removable bases/water miscible bases thus can be quikly washed off with water.

3. These creams are o/w emulsion contains large percentages of water and stearic acid or other oleaginous components After application to skin it continuous phase evaporates leaving behind a thin residue film of stearic acid. Stearic acid gives pearly white shine to the skin.

4. Ideal properties High melting point Pure whiteness Very little odor and low iodine number Rubbed easily on the skin

5. Major ingredients used Stearic acid- Major componenet of vanishing creams High quality be used because it provides an oil phase thus it should melt above the body temperature Provides non greasy film and gives very attractive appearance to skin. It also provides consistency to cream Humectants- Glycerol most favoured followed by sorbitol and propylene glycol Its use to prevent excessive drying out of cream.

6. KOH or NaOH - Use to neutralize free fatty acid. NaOH makes harder creams than KOH Triethanol amine is also used instead which makes preparation easy and viable in nature. Glycerine- Used to maintain consistency and enhance spreading ability. Perfume- Sandalwood ,lavender oil, l inalol, rose, geraniol. Water in large quantity so preservative required to prevent microbial growth Methyl parahydroxy benzoate (0.12%)and propyl parahydroxy benzoate (0.12%)in combination

7. Formulation of vanishing creams Oily phase Stearic acid- 15.0% Cetyl alcohol- 0.5% Isopropyl maristate- 3.0% Aqueos phase kOH - 0.50% NaOH- 0.18% Glycerol- 5% Water – 75.82% Preservative – q.s. Perfume- q.s.

8. Procedure Dissolve the sodium and potassium hydroxide in water add glycerol and preservative and heat to 80 degree Celsius. In other vessel melt the stearic acid, cetyl alcohol, and isopropyl maristate(oily phase) and to 75 degree Celsius. Add alkali solution to the melted oily phase with mixing. When the mixture has cooled to about 45 degree Celsius, add the perfume continue mixing until cool. Cover it and let it stand overnight. Remix briefly next day before packaging.

9. Uses- Reduces loss of moisture from dry skin. Smoothens the skin and keep it soft. Prevent skin from roughening and chapping. Used as adhesive for makeup powders.

10. Marketed products Lakme Ponds Charmis Max- factor

11. THANKYOU