The product life cycle of Tesco's cheese product can be divided into four stages: introduction, growth, maturity, and decline. In the introduction stage, the product is initially offered in the market with promotions to make people aware of it. During the growth stage, the product becomes stable in the market, competitors enter with substitute products, and the product reaches a profitable state. The maturity stage sees the product at its highest level, with competition increasing and promotion playing a significant role. Finally, in the decline stage, the product's popularity decreases due to changes in consumer preferences or the rise of alternative brands.