53:38NAHA Creative Conversation | Christopher Dove & John SimpsonProfessional Beauty AssociationBeauty creatorsInterview7 years ago
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1:37Faster Color Application and Highlights: John SimpsonBehind The ChairBeauty creatorsTutorial12 years ago
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0:56Keep Reds Vibrant with Goldwell's John SimpsonBehind The ChairBeauty creatorsTutorial14 years ago
0:48Spring Haircolor Trends with Goldwell's John SimpsonBehind The ChairBeauty creatorsInterview14 years ago