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Topical compositions with a reversible photochromic ingredient

  • US 6,531,118 B1
  • Filed: 12/11/2001
  • Issued: 03/11/2003
  • Est. Priority Date: 12/11/2001
  • Status: Expired due to Fees
First Claim
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1. A topical composition having a reversible visible change in color in response to a change in light comprising:

  • at least one.photochromic material; and

    a vehicle acceptable for topical application to skin or hair.

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