C E Ferulic should be applied to dry skin. In the morning after cleansing and toning, apply 4 - 5 drops to your face, neck and chest. Once the serum is absorbed, it can’t be washed or rubbed off. It is effective for a minimum of 72 hours. And remember, ALWAYS start new products one at a time, about a week apart, to make sure you don't get a reaction. Learn more here: https://masterpieceskinrestoration.com/blog/c-e-ferulic/