I do REALLY love having the option to whiten at home whenever I want. After 6 treatments (ranging from May 23rd to June 12th, 2017), I'm not sure my teeth can get whiter...or need to be. You can use it 10 consecutive days though I was traveling and it wasn't convenient. I will keep going though just to see how white they can go...and then buy the maintenance gel vials to keep going. I have used various treatments to whiten my teeth over 20 years and this is my favorite. Starting back 20 years, I had impressions made at the dentist office and filled them with syringes of gel only available through a dentist because of the strength of the solution. I did that process for a number of years until new products came to the market. I then tried an on over-the-counter recognized name brand of strips (starts with a C) and though they were effective, I couldn't eat or drink the rest of the day and the day after due to tooth/gum sensitivity. I was young and foolish, and thought...ok-call it a diet. I went back to the dentist syringes given that I still had the impression molds but they didn't produce the results that the strips did, so I went back to the strips. Even the version for sensitive teeth left me not being able to have anything come in contact with my teeth for a day or 2, including air, without feeling pain. I was done with the C strips and gave them away to a co-worker, who couldn't afford them otherwise, and chose to deal with the pain-which she had as well. I bought the first GLO kit at a cosmetic chain store (Starting with an S). It worked well and I loved it, and bought the refill whitening gel vials and continued using it...until the charging unit stopped working. I returned it to the chain (only because I couldn't exchange it-they stopped carrying the brand in stores-though stood by the return). I bought a new unit on Overstock though didn't start using it until May 23rd, 2017. It was new and improved-with a heat feature that wasn't on the previous model. It seems to work better as well-I've only used 6 of the 10 vials included and the photo I attached shows the result (the photos were taken at the same time of day in the same spot-with the same light). I didn't think my teeth were all that yellow until I saw the side-by-side photos. It definitely works and I'm very happy with the results. I have little to no sensitivity using this product-and I have sensitive teeth/gums. The C strips concerned me not only because of the sensitivity, but also because while they worked, I could also see the pulp of my teeth after use. I don't have that with this product and I think you get what you pay for with the C strips-NOT something I want to risk or suffer through. I then did an in-office (dentist) whitening treatment that was expensive and also only produced fair results. I chose that option because the dentist office claimed that the strength of the solution they use can only be applied by a dentist and produces results of 10 over-the-counter uses. Didn't work like that for me and I also had tooth/gum sensitivity again. The ONLY reason I give this product a 4 instead of a 5 is because although the gel whitening vials were re-designed, they are as bad as the original design in that a fair amount of the gel is wasted and they are challenging to use/gauge properly-especially knowing that 1 vial is supposed to be used in 4 consecutive treatments. The syringes given by the dentist 20 years ago and then again 10 years ago were easy to use and also marked how much to use (via markers on the syringe casing) per use. I hope GLO comes up with a better design for the gel vials in the future and my fingers are crossed that the charging unit doesn't stop working. The GOOD news about the gel vials-even though they are challenging to maneuver and gauge the right amount, I feel I get a fair amount of coverage in each of the 4 uses and often have enough left to use toward another treatment. Hope this helps anyone deciding whether to go for it...it definitely works! This is a product I WISH I could give a 5 of 5, because the results are there, I really just need to see if the charging unit continues to work for a long period of time (for maintenance and not just every 20 gel vials-using the 10 included and another 10 purchased maintenance vials-which I have yet to see happen wth the previous model ). (I removed the photo after reading the Overstock.com terms and conditions). Specifically-this Overstock.com terminology "You acknowledge and agree that Overstock.com may publish your name and geographic location in conjunction with any comments or reviews submitted by you". I would love to show you the photo, though Overstock.com does not allow me to edit how my name is shown, unlike other popular websites, and I therefore revoked the use of the photo.**REVISED 6.16.17-after seeing that my review was published without my full name, I uploaded the photo showing before and after 6 treatments. (I hope this wasn't a mistake...and mostly hope it helps anyone deciding!)
These are just as good as a more expensive brand I previously had. I bought 2 of them. My husbands sanitizer light didn't work properly but overstock made the return very easy and shipped a new one right away. Highly recommend this product. Nothing cleans better than a sonic toothbrush.
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