Do you buy skincare products from brands you've never heard of before?

While browsing a brand recently, I saw that they were selling skincare products at a very low price as part of a first-purchase promotion. However, the price was so cheap, but since it was a brand I'd never heard of before, I felt a bit hesitant. I searched on Naver, but there were hardly any reviews, so I'm a bit worried. Should I buy one or not? ㅠㅠ