Toner

I myself purchased this toner a while ago, on the more expensive side but very nice. It works well for a more oily skin and removes all makeup residues well. When using this, I notice that I moisturize my skin well, so not just removing makeup so much. I find it on the more expensive side, but it does work and is one of the better toners I've tried:

Hey everyone! Is a toner really necessary or a must have? What does it add for you?