disclosed herein is a water - soluble chelated complex of a co - polymer of n - acetylglucosamine - glucosamine pyrithione sale . this composition is characterized by a highly viscose texture with excellent surface properties and extremely long acting antimicrobial activity . agp &# 39 ; s antimicrobial activity against acne bacteria has been found superior to the benzyl peroxide the leading acne medication . in addition , agp has been proven to be effective against many pathogenic yeast . agp has the potential to be useful as a long acting broad - spectrum antimicrobial composition in a variety of dermatological medicaments and cosmetics .