Answer:
market segments
Step-by-step explanation:
Market segments -
It refers to the portion of people , who have some common features , are referred to as market segment .
Where the market is segmented on the basis of some uniques characteristics in order to stand out in the competitive world .
Hence , from the given scenario of the question.
Cosmetics are designed according to the particular age age group , showcasing to be an example of market segments.