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UV Protectant Patented by BASF

November 11, 2005

Patent No. US 6,413,503 B1: Research-ers for BASF in Ludwigshafen, Ger-many, earned a patent for a method of treating human skin and/or human hair against solar rays using a photostable UV filter in a cosmetic or pharmaceutical formulation containing cyclic enamines.
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