Cosmetics is a world based on the senses. The fragrance in a cosmetic product is a determining factor to seduce the consumer, is a key aspect of these first impression that determines the acceptance or rejection of a cosmetic product. This decision depends on a variety of factors, some of them directly related to the product itself, some to the person who choose and consume it, and other factors are linked to the environment where the evaluation is carried out. Getting to combine a good sensory acceptability of the product with its efficacy and safety plays a fundamental role in the development of new cosmetic products. Raw materials, physical properties and the structure of the formula influence the physiological perception (colour, texture, scent …), which can be quantified using trained panels. This physiological perception of the product, together with the branding information, previous experience, attitudes and beliefs, influences the consumer’s response, which can lead to acceptance or rejection. Here are discussed different methodologies such as discriminatory, descriptive and acceptability to investigate consumer perception.