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.

Super Soft and Comfortable Fit! I got a sample of the Sonic Pro replacement head at my dentist office and loved it so much I had to hunt down where to purchase them. The bristles are so incredibly soft and the perfect size head to make brushing with your electronic toothbrush a great experience. I used to hate using my electronic toothbrush because the bristles were too hard and the head too large making my brushing experience uncomfortable. If you have sensitive teeth/gums, they also have a sensitive head option which is even softer.

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.

Always consistent...in a good way! Ordering from Quantum Labs has always been a good experience. I get great quality, good pricing, and predictable delivery. What more could you want in a vendor? Highly recommended!

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.