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Method and composition for evenly applying water soluble actives

  • US 8,299,127 B2
  • Filed: 03/11/2009
  • Issued: 10/30/2012
  • Est. Priority Date: 03/11/2009
  • Status: Expired due to Fees
First Claim
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1. A method for evenly applying a water soluble active, the method comprising the steps of:

  • (a) applying to dry skin a topical composition comprising a water-in-oil HIPE, the HIPE comprising;

    1) water;

    2) emulsifier from about 0.5 to 12% by weight;

    3) steric stabilizer comprising a polyether or polyglycerine cross-linked silicone elastomer or both;

    4) depletion stabilizer comprising an alkyl modified cross-linked silicone elastomer where the cross-linking group has a chain length from about 8 to about 26 carbon atoms;

    5) oil;

    6) non-emulsifying elastomer, and7) water soluble active; and

    (b) shearing the topical composition during application onto the skin resulting in free water creating a hydrophilic surface on the topical composition applied while simultaneously maintaining water in the HIPE for the water soluble activewherein the topical composition, prior to applying, has a contact angle against water which is greater than about 90° and

    less than about 70°

    immediately after topically applying with shear and further wherein the weight ratio of depletion stabilizer to steric stabilizer in the HIPE is from about 1;

    3 to about 3;

    1.

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