I HAVE USED THIS MACHINE SEVERAL WEEKS. I HAVE NOT SEEN SIGNIFICANT CHANGE STILL BUT I STILL USE IT BECAUSE I KNOW THE CHANGES ARE BEGINNING TO SEE AFTER SEVERAL WEEKS OF CONSTANT USE. I AM ALREADY BEGINNING THAT MY HAIRS BELOW MY BARBILLA ARE ALREADY TAKING A LITTLE MORE TO LEAVE THIS FOR ME IS SIGNIFICANT BECAUSE IT WANTS TO SAY THAT LITTLE TO LITTLE IS GIVING RESULTS.