Coffee lover here! My teeth were so stained from coffee but they’re also very sensitive so I’m leery of whitening products. I gave these a try and I noticed results with in just a couple of uses. No sensitivity issues at all! Great bang for your buck.Use before work or events and it does workHelps make the back of your teeth white not just the frontSecond time buying these pens cause I used up the first two. They are great on a budget and don’t really bother my sensitive teeth. I would not use it for an extended period of time I normally use once a day for a week and then take a break.Product was easy to use. It took a few days to see results and I learned I had to apply it daily. My camera is not that great but I did include a picture.Didnt dislike anything.One of the pens leaks how about a free one?Really like it. Easy to use and works well.I’m usually a bit apprehensive when using whitening products on my teeth, however I was persuaded by a friend to try this one out - and I do not regret it.Firstly, it doesn’t taste horrible or harsh in the mouth like other products do, it’s just fine.Secondly, it actually works! I’ve noticed such a difference in a weeks worth of using Bright White, and I’m so happy.Lastly, it’s easy to use! Just brush your teeth with the soft bristles on the applicator and that’s it.Would recommend to a friend, as it’s a great product to use.I’ve used the product a couple of times so it’s maybe too soon to say how I feel but here goes….+Easy to use- When it’s on it burns my lips+Works quickly- Have to rinse mouth within a couple of minutes due to the burning feeling+Teeth seem shiny & whiter- I can’t seem to see how long to leave product on before rinsing so could they be even betterBut I don’t give up easy so I’m going to stick with it!Results already visible from the first use.I have used this product from other brands before and I was a bit skeptical as the taste wasn’t pleasant. However I gave this a try, and I’m so happy I did. Taste nothing (don’t use too much, just a bit is enough) and I didn’t even feel any taste at all.5 starts from me.I am so so impressed, this is the difference in just 3 days!Love asa vea products, I tried their previous whitening pens which worked so well as I saw a big difference in less than a week. With these new pens the liquid foams up so it stays on your teeth so much easier and they whiten just as good! The only thing I would say is that they don’t taste as nice so you have to rinse the liquid out of your mouth (which is fine). Really happy with this product :)