Moisture-binding skin care product and method of making the same

Details Moisture-binding skin care product and method of making the same Moisture-binding skin care product and method of making the same

1996-03-19

2000-09-05

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

514937, 514938, A61K 700, A61K 9107, A61K 9113

Patent

active

061139246

ABSTRACT:
A skin care product which is moisture-binding, which has a pH ranging between 7.2 and 7.6, and which is a three-phase product consisting of a water phase and an oil/water emulsion creamed up and floating on top of the water phase, and which maintains this three-phase state for at least one year, and a method of making same which includes providing a water phase comprised of at least one cosmetically active ingredient which is water-soluble, and solvents including water, at least one glycol and at least one alcohol which is not a glycol; providing an oil phase comprised of at least one cosmetically active ingredient which is oil-soluble, and at least one emulsifying agent; heating separately the water phase and the oil phase; mixing the water phase and the oil phase which have been heated to provide a mixture having a temperature ranging between 37.degree. and 44.degree. C.; cooling the mixture to a temperature ranging between 26.degree. and 30.degree. C. while stirring the mixture under a vacuum; homogenizing the mixture after cooling for a time period ranging from one half minute to 3 minutes; and allowing the mixture to settle and to separate after homogenization within a period which does not exceed 8 hours to provide the three-phase product.

REFERENCES:
patent: 4254104 (1981-03-01), Suzuki
patent: 4331167 (1982-05-01), Wajaroff
patent: 4438095 (1984-03-01), Grollier et al.
patent: 4776976 (1988-10-01), Nakamura
patent: 4782095 (1988-11-01), Gum
patent: 5036108 (1991-07-01), Asahi
Janistyn, H. ,"Handbuch Der Kosmetika Und Riechstoffe III Band: Die Korperpflegemittel", Dr. Alfred Huthig Verlag Heidelberg, pp. 605-611. (Translation-partial.).

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