The thesis consists of a proposal to improve the manufacturing process of the hair dye line produced by Syd Laboratorio Cosmetico SAS, a company based in Cali, Colombia. With its existing model, the company experiences production and inventory planning problems, which result in inventory cost overruns and a low level of service. Due to the importance of such management, this thesis analyzed how the DDMRP (Demand Driven Material Requirements Planning) methodology provides a solution that fits the company's needs. The model overcomes the criticisms of the classic MRP in terms of demand variability and it is based on the strategic positioning of inventories and determination of adequate dimensions for the buffer sizes known as buffers.