Once you go through your required 2 sessions within one year, it is highly suggested that you don’t do anymore touch-ups for at least 1 year. Why? Because the more sessions you do, the more likely you can cause trauma and scar tissue, which makes it difficult to impossible to implement pigment after that. After you get your annual touch-up, my personal suggestion is to wait and receive another at least 12 months or more. Clients who are oily may get touched up a little before the one year mark but I would message directly to determine case by case.