Stable cosmetic compositions with different ph emulsions

Details Stable cosmetic compositions with different ph emulsions Stable cosmetic compositions with different ph emulsions

A - Human Necessities

61

K

A61K 8/365 (2006.01) A61K 8/06 (2006.01) A61K 8/67 (2006.01) A61Q 19/00 (2006.01) A61Q 19/08 (2006.01)

Patent

CA 2304122

The inventive compositions contain an oil-in-water and a water-in-oil emulsion, each buffered to a specific pH, so that the difference in pH values of the two emulsions is at least two units. The molecular mixing is minimized by selecting suitable oil and oil phase in a water-in-oil emulsion. The change in pH is further minimized by buffering each emulsion. The particular advantage of the inventive compositions is the ability to separate within a single composition, with minimal intermixing, active compounds which require different pH environments for stability and/or optimum efficacy.

L'invention concerne des compositions renfermant une émulsion huile-dans-eau et eau-dans-huile, chacune tamponnée à un pH spécifique de manière que la différence des valeurs pH des deux émulsions soit d'au moins deux unités. On réduit le mélange moléculaire en sélectionnant de manière adéquate l'huile et la phase huileuse dans une émulsion eau-dans-huile. On réduit ensuite la variation de pH en tamponnant chaque émulsion. Cette composition convient particulièrement lorsque l'on souhaite séparer dans une seule composition, avec un mélange minimum, des composés actifs nécessitant différents environnements pH en vue d'une stabilité de stockage et/ou d'une efficacité optimale.

Affiliated with

Also associated with

Rating

Stable cosmetic compositions with different ph emulsions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stable cosmetic compositions with different ph emulsions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stable cosmetic compositions with different ph emulsions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1680652