I love that this is pretty much just snail mucin.  I tend to react poorly to products with a lot of fillers which is one reason why I like CosRx so much; their products don't have many useless ingredients and tend to focus on one ingredient.  This essence has been making my skin feel and look a lot smoother and I find it really moisturizing.  Though, I still need to put something over it for the colder months because it isn't hydrating enough on its own.  Two pumps are enough to cover my face and neck and the bottle is pretty big so it'll probably end up lasting over seven months.  I doubt I'll find something to replace this unless CosRx discontinues this product so I'm definitely going to keep getting it.