Long lasting, hydrating, matting, plumping: these are all qualities we read about in lipstick advertisements. With new slogans and the guarantee of unique quality, producers encourage us to buy new products. Oil/wax systems sound simple and uncomplicated, but what exactly does that mean for the development chemist?
The first step in formulation development is to define the qualities of the finished product and the basic features of the formulation, such as:
• Price point.
• Legislation.
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