Positive reviews for AZ Teeth Whitening Spa & Tooth Gems Phoenix highlight the great experience and pain-free process that customers have had. Many customers have noticed a significant improvement in the brightness of their teeth, with some claiming to see a difference immediately. The staff is often praised for being friendly, personable, and providing excellent service. Some customers appreciate the option to purchase sessions through Groupon and recommend upgrading the service once at the spa. Overall, customers appreciate the quality of work and service provided at AZ Teeth Whitening Spa & Tooth Gems Phoenix. Unique facts about AZ Teeth Whitening Spa & Tooth Gems Phoenix include their use of an applicator to quickly and effectively apply the Whitening Gel to the teeth. They also utilize a light that is perfectly adjusted to the appropriate wavelength, maximizing the energy output and accelerating the whitening process. AZ Teeth Whitening Spa & Tooth Gems Phoenix specializes in teeth whitening services. They offer various strengths of Whitening Gel to provide the best whitening effects in a short amount of time. Their process involves applying the gel using an applicator and activating it with a light, resulting in quick and effective results. In summary, customers at AZ Teeth Whitening Spa & Tooth Gems Phoenix have had positive experiences, praising the pain-free process and the noticeable improvement in the brightness of their teeth. The staff is friendly and personable, providing great service. Unique features of the spa include the use of an applicator and a specially adjusted light for optimal whitening results. Overall, AZ Teeth Whitening Spa & Tooth Gems Phoenix specializes in providing quick and effective teeth whitening services.