I did the mistake of having someone order whitening gel when i was out on vacation and she failed to go to ultradent to order the gel, we received only half my order and the way it was shipped i realized she ordered from a company I'm not aware of, and when I tried to call them there was no phone number on the invoice to contact and going to their website there was no number listed there either which leads me to believe that this company is making money off of other companies names and not wanting to be a legit company that does have a good customer service response, and then when trying to return the material we would loose a third of the cost of the purchase for stocking purposes which is bull$#*!! I work for a very established Dental practice and would not recommend this company to anybody go to your dentist and buy it at cost from them or go directly to Ultradent Dental company to order directly. Angerly a very disappointed client that I know this company will never address this comment