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Lipstick plays an important role in society!
The history of lipstick could go back to 5000 years ago. And nowadays, lipstick isn't just a simple decoration for lips anymore. It has become a way to show the taste, personality, one's preference, etc. Even during recessions, people were still willing to spend money on small indulgences, especially lipstick; and this was where the "Lipstick Effect" came from.