That is the normal length of session offered by the clinic I went to, and they said it has a 50-60% success rate. They told me that the shorter time is just as effective according to clinical studies. It DID make me feel something, which was a “numb” feeling on the right side of my brain, sort of like a “hole.” Unfortunately it had no other noticeable effect. I paid $750 for 5 weeks of 5 days/week treatment at 10 mins/treatment.
The feeling of a “numb” area is now gone.