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Treatment of acne and skin disorders and compositions therefor

  • US 4,372,296 A
  • Filed: 11/26/1980
  • Issued: 02/08/1983
  • Est. Priority Date: 11/26/1980
  • Status: Expired due to Term
First Claim
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1. A method for treating acne comprising topically administering with ultrasonic vibrations at a frequency between 1000 KHZ and 3000 KHZ and at a power level between 0.5 and 3.0 watts per sq. cm. to acne affected skin an effective amount of a composition comprising from about 1.0 to about 4.0 percent by weight of zinc sulfate and from about 2.0 to about 6.0 percent by weight of ascorbic acid in a pharmaceutical carrier which is an effective coupling agent for ultrasonic vibrations and which does not inactivate the pharmacological activity of the zinc salt or ascorbic acid whereby said composition effectively retards the rate of sebum secretion in the treated area and stimulates the production of collagen.

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