What is the worst cosmetic product?

A YouTuber recommended this item, so I just trusted them and bought it at the department store without thinking... Should I call it a red bean porridge color? It's the kind of shade that makes even adults' faces look dark when they wear it... It's the biggest regret among all the lipsticks I've ever bought... I feel like it was a waste of money, so I still haven't been able to throw it away and am just keeping it sitting there.

You really need to test it before buying lipsticks... I regret grabbing it without even testing it back then.