I faithfully use the microdermaroller as directed by 1 of their associates, but I did not see good result. The lady kept contact me, Tina tried to sell me more product that she claim to help. But I'm not interested { I already have enough supply at home}. I tried to contact the office, and the sale man, but no answer. I contact Tina again before the 60 days guaranty to get my money back. She said what do I have to return since I use it all. She said she will contact the company and let me know, but it's been more than a week, she's seem disappeared. It's a waste money, and time