Very easy..... noticed a difference in a month ..... 2 times a day...... mornings and evenings after washing face
I have seen how it has improved my skin significantly, I am excited to continue using it because so far it has visibly diminished my wrinkles.
As stated in the packaging, this requires diligent usage over 90 days.
Very good! Easy to use and I love the control level of how high or low you want it to go.