I have been using mood for 7 weeks now, I didn’t see any results by week 5 so I wrote to customer service. They said to put it on level 7. I did and I have burned marks all over my arms and legs. I wrote to them and their response was “did you do the skin test to try the comfort level on your skin?” After, they suggested for me to use on level 7. It seems like anything less than level 7 doesn’t give me results and then level 7 burns my skin:(