Does everyone have their own secret skin care product?

Lately, my skin has been getting more sensitive, so I've been trying out a variety of products, and I've finally found my go-to skincare product. It's a soothing sheet mask. After using it, my skin feels much less hot, and my makeup goes on much better the next day. That's why I was curious about other people's skincare products. Whether it's a cleanser or serum, do you have a skincare product that's actually effective for you? I'd also love to know how you chose your favorite daily skincare product. Please feel free to share how you found your go-to!