I can tell a difference!
I have been using for almost 2 weeks and I can already see a slight difference. I'm excited about it. However, it seems to shut itself off after about 10 minutes. Is this normal? And I seem to have to charge it more often. Is this normal also? I included a before and after pic. Please excuse the before pic as I did it right after I applied the serum and had it on my teeth. LOL