Don’t!
Ridiculous design, try to get “gel” out of container. Impossible, manufacturer:  next time try a tube. I bought from my dentist, used five full treatments, teeth look the same as before. Just glad I didn’t have office treatment of the Gel, costs three times as much. Spend your money on a good brush and paste.<br />Don’t waste it on this useless piece of junk!
Rating: 1 stars