My device was either defective
My device was either defective or the product does not work. My application tip brushes had nothing visible on them ever. I saw no difference on my face. I reached out to Opte..,tried their suggestions...no results. I returned my machine...too expensive to take a chance on another. I am leaving honest review soon FB because I feel there are a lot of false reviews on there. If you product works prove it! I really really wanted to love it!