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+

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.

Great toothbrushes. Great company. Patient's love the Quantum brushes. They are top quality and Quantum has the best customer service.

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.

Best Affordably Priced Toothbrushes I was extremely skeptical of Quantum Labs competitive pricing and assumed the shipping cost would offet the low price of the tooth brushes. Much to my surprise, the shipping costs were not inflated and my package was promptly delivered. My first Quantum Labs purchase was a very positive experience.