Adjuvant Holdings Co., Ltd. engages in the planning, research, development, and sale of cosmetic products for salons and barber shops. It operates through the following divisions: Skin Care, Hair Care, and Others. The Skin Care division offers cleansers, facial wash, lotion, beauty essence, masks, moisturizing cream, makeup base, makeup, and body care products. The Hair Care division provides shampoo, treatment, scalp cleanser and lotion, styling products, and coloring agents. The Others division deals with computer software development. The company was founded by Yutaka Nakamura and Junko Tanaka on April 10, 1990 and is headquartered in Kobe, Japan.