What cleansing products do you buy?

I alternate between using cleansing foam and cleansing oil.

Honestly, when I use cleansing products, I feel like they're all pretty much the same.

I don't have a product I particularly love.

So every time I buy a new product

I just buy products from Olive Young or those with high rankings on the Hwahae app.

Do others have their own criteria for choosing cleansing products?

Also, please tell me your favorite cleansing product among those you've used so far.