I don't know. To be honest, it works just like any other UV light teeth whitening kit. It's easy to use, we'll see how well it works in the whitening department once I've had it long enough. What absolutely baffles me is why don't they include a cleaner/cleaner head? If you want a lot more for the car like this company does, I think throw in a $10 brush head and let your customers see how much they like your "whole kit". It seems a little cheap and a little petty to ask people to buy this set and not include the brush which is clearly described in the instructions. I feel like I've missed something. The lack of a full system certainly left me with bad taste in terms of my opinion of the company and the product. If they "should" work in tandem, send them together.
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