When comparing different whitening systems, you need to take into consideration several key points: What kind of light source does this system use? Does the system contain a light filtration system? What is the strength of the whitening gel used? What is the quality of the whitening gel? There are several different kinds of light sources available and some are significantly stronger than others. Essentially the stronger the light source, the faster and more effective whitening treatment. The strongest light technology options available right now are halogen and mercury metal halide light. Beyond WhiteSpa uses a halogen light source. Other cheaper, less effective options include LED or even gimmicky, flashing lights. You want to consider a system that has one of the more powerful light source options as these will produce better, longer-lasting whitening results because the light-accelerated whitening will be stronger and deeper. For the systems with stronger light sources, you will want to use one that filters the harmful spectrums of the light out before it is exposed to your mouth. Beyond WhiteSpa has an advanced light filtration system that removes all harmful ultraviolet light and restricts the light spectrum to the most effective whitening wavelengths, between 480-520 nanometers. Other systems, including Zoom, don’t filter their light, so your mouth is being exposed to all wavelengths of light, including potentially harmful ultraviolet light. These systems require that all pink tissue in the mouth be completely blocked-out in order to avoid exposure to UV in your mouth during the treatment. Beyond WhiteSpa uses a 6% hydrogen peroxide, over-the-counter strength whitening gel; in-office dental systems use between 15%-35% hydrogen peroxide. The higher the hydrogen peroxide percentage is, the faster the treatment – but the greater the risk of sensitivity. Regardless of the strength of the gel, you will see the same results in the end. The benefit to Beyond WhiteSpa’s gentle whitening gel is that it is ideal for those clients with sensitive teeth or who are looking for a less invasive whitening treatment. High-quality whitening gels use a dual-barrel dispensing system because they contain both active ingredients and activating catalysts that actively work to accelerate the whitening process and provide the best and longest-lasting results. Cheaper whitening gels are beginning to flood the market and the results seen from these are not comparable to those from high-quality whitening systems. Essentially, when researching what teeth whitening system you want to use to whiten your teeth, you want to ask as many questions as possible so that you can make an informed decision. The person you talk to (either aesthetician or dentist) should be able to answer your questions thoroughly and to your satisfaction. Cheaper whitening systems are starting to enter the market and you need to proceed with caution when considering using these systems. Lack of a light filtration system or a lower-quality whitening gel could seriously injure you or your client or result in bad whitening results. It is important that you feel comfortable with the quality of the system before beginning any whitening treatment and that you are familiar with how the system works and the precautions (if any) that need to be taken.