Wasn't a necessary to pair with Wrinkle Serum
"I bought this upon the recommendation that the Wrinkle Eraser serum applies best with this toner. Actually the consistency of the serum is very liquidy, not viscous at all, and i wound up getting a lot of splash back. Not pleased about wasting all this product on my fingers, hair, nails, etc because both toner and serum are very expensive."