5 star service VERY helpful! I ordered the wrong size gloves, I called and actually had a human answer the phone. She was able to intercept the order, change it, and left me an email overnight. Wonderful service.

My favorite electric toothbrush head I use my Sonic Pro much more now that I discovered Quantum Labs Ultra Sensitive brush head. With the original heads, I was only doing it at night, and on the medium intensity setting. Now I use it morning and night, and on full intensity. Thanks to my hygienist for the sample! I received the order in seven days. It was kinda "old school" in that I didn't get and email with tracking number it shipped, but it did ship promptly after all. Only downside is that I had to buy 48 heads, which, even if I change once a month, will last longer than the toothbrush.

Quality and Comfort A+ Quantum Eurotech charcoal toothbrush is the most comfortable and stimulating toothbrush I've had in years. Outstanding quality and comfort, which means I'll use it! Quantum's website is easy to negotiate. Product arrived quickly without issue. A+

I've been a customer for several years I've been a customer for several years. Never had any problems with an order. They're prompt, besides getting your order right... Orders typically ship the next day.

Truly soft Most toothbrushes that I have purchased say they are soft but feel medium or hard, but the Glisten toothbrush is one of the softest toothbrushes that I have used. The bristles length, head size, and handle are all well designed and are not too big or too small. I’m definitely recommending this toothbrush to anyone who wants a truly soft toothbrush.