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Welcome to DermTV Viewer Questions Week for February 2013. Today's questions come from YouTube viewers @colombianita2005, @Enchanteralle, @lelo harun, @Elanor L, @MizzZamify, and @RangerMommy. Topics included collagen products, eye creams, syringomas, cold sores, salicylic acid, lha acid, hyperpigmentation, tretinoin, glycolic, exfoliation, hayflick limit, and more!