Skin treatment compositions containing copper-pigment complexes
US8303985B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Jun 11, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/58
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A therapeutic method is described in which copper is delivered into the skin as a complex with sodium chlorophyllin. Sodium copper chlorophyllin is encapsulated in suitable lecithin-type liposomes, containing a high concentration of linoleic acid and having diameters in the range 150-350 nanometers. The method provides therapeutic benefits in the treatment of environmentally-induced premature skin aging, excessively oily skin, acne and acne-related skin disorders, acne-rosacea, and also stimulates the natural tanning response of skin to sunlight and other ultraviolet-containing radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.