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Exfoliation Method Patented by Northern Research



Published November 3, 2006
Related Searches: acid composition research mix
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Patent No. US 7,115,251 B2: Northern Research Laboratories Inc., Saint Paul, MN, patented an exfoliating composition of a mixture of phenolsulfonic acid, guaiacolsulfonic acid and sulfosalicylic acid in a concentration effective for exfoliating human skin.


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