COLD CREAM

COLD CREAM

AIM: To prepare and submits 10gm of Cold Cream.

FORMULA:

S. No.	Ingredients	Qty for 100gm	Qty for ____ gm
1	Bees Wax	8 g
2	Mineral Oil	49 ml
3	Soft Paraffin	7 g
4	Cetyl Alcohol	19 ml
5	Borax	0.4 g
6	Water	34.6 ml
7	Perfume	Q.S

PRINCIPLE:

Cold creams are typically beeswax-borax emulsions. They are called as cold cream because on application to skin the evaporation of water leads to cooling effect. When a solution of borax is added to molten beeswax, emulsifying agent is formed because of wax acid & borax i.e. wax acid is saponified by borax forming Na- soap (i.e. Na soap of wax acid). This agent is formed at the interface between oil & water, which emulsifies the mineral oil in water. It is because of beeswax, cream is able to contain appreciable amount of water. These are typically white creams of higher-class free form greasiness, which has firm consistency & on application they liquefy and spread easily.

This cream can be either o/w type (or) w/o type depending upon the ratio of water phase. 45% is considered to be the critical level of water phase, cream-containing water less than 45% is w/o type & cream with water phase more than 45% is o/w type of emulsion.

Percentage of beeswax used ranges from 5-15% & borax 5-6% of wt of beeswax. Lesser amount of beeswax gives softer cream & higher amount give stiffer cream.

Both w/o & o/w emulsion can be obtained by beeswax-borax which depends upon.

·         Ratio of oil to water phase.

·         Temperature of preparation

·         Amount of beeswax saponified.

·         Other ingredient present.

Cold cream has got a neutral pH.

PROCEDURE:

Take 2.16gm beeswax, 1.89gm of soft paraffin, 0.27gm of cetylalcohol 13.2ml mineral oil in a clean dry vessel & heat on water bath to 80° C. Dissolve borax in water in another vessel & heat simultaneously with the oil phase to 70°C. Add the aqueous phase to oil phase slowly with rapid stirring. Continue stirring slowly after the additions of aqueous phase until the cream has cooled to about 50° c. add the perfume, mix well. Weigh out 25gm of cream & fill into jar. At the time of filling the cream, it should have cooled to 40⁰-42°C.

USE: To prevent loss of water for dry skin especially during winter.

REFERENCE: Hanry’s cosmetology. Page: 54 -55.