 6. Subjects who have used antifungal agents, corticosteroid preparations, ketoconazole, ciclopirox, salicylic acid, terbinafine, amorolfine, butenafine, clotrimazole, econazole, oxiconazole, sertaconazole, sulconazole, luliconazole, fluconazole, benzoic acid, griseofulvin, undecylenic acid, zinc pyrithione or selenium sulfide, or tar containing topical treatments for their scalp within 1 week prior to the baseline visit. 