The instructions say you can wear for 1-2hrs or overnight. 1-8hrs is a large range. Comparisons of whitening effectiveness : wear time?
1986943
I wear mine at night and usually fall asleep with them in. I asked my dentist and he said wearing them at night for a longer period of time is when you'll see the best results. I normally wake up in the middle of the night, go take the strips off and just wet a toothbrush and gently brush the gel off your teeth and swish. That's how I get the best results
1986944
We only wore the strips for two hours each day and were pleased with the results. I don't think I would wear them longer. Same strips as we purchased at our dentist's office for less than half the price. We've ordered again.
1986945
After 2 hours it stops working. It doesn't continue to whiten for 8 hours, that would be dangerous. I accidentally fell asleep on the couch with them on one day, but I really don't recommend sleeping with any type whitening strips, only bleaching trays. These adhere pretty good, but I still personally wouldn't sleep with them on.
1986946
The stuff is half the price as dentist offers.same stuff.it works.sensitivity is the issue with wear time.shorter time less sensitivity.
1986947
I've always worn the strips for about 4 hours, not longer, so i'm not sure if the whitening differs with longer wear time.
1050458
After about three hours of bleaching I remove the trays, rinse out my mouth and then I will eat. If you are a big red wind or coffee drinker you will just have to whiten more often.
1882194
You could. But they do tend to cause pain... I've overused them & by that I mean one every other day. Unless you have a high tolerance of pain, I wouldn't recommend them. If you want a whiter smile faster, I would suggest the two hour strips every other day. Twice the whitening, maybe a little more painful but it's faster & takes a lot less uses.
757270
Sensitivity may occur and this is what this is for..if you experience a burning sensation or irritation from using the whitening solution, brush your teeth, and simply apply a small amount to your teeth traus and wear them for 30 min.. remove and rinse trays and your mouth with cold water. I've only had to do this once and only on lower gums, so I did not use the gel for the top. You can use this twice per day until symptoms are relieved. Do not use the whitening gel while treating your sensitivity.
1045834
I cannot imagine leaving this product on overnight. The first time I used it I had trouble not washing it off sooner than the suggested time. With regular use my skin can tolerate the product for longer and longer time periods, but I'm talking about minutes. I cannot imagine an hour, much less overnight. I am afraid her face would be badly burned.
1973931
I was told by my dentist that each of these syringes will last 7 days. You put a dot of the whitening solution in the middle of each tooth impression on the front of your trays. It will spread out when you put your trays on.
588600
It is recommended that you use these every day until you finish the box. For faster whitening, use them twice a day. The directions suggest that you may use up to 2 boxes per year. I find that I have reached my "brightness goal" by using one box. I keep extra boxes available and will use them "daily" for a few days when I begin to notice that my smile is losing it's brightness (I can see this most easily in photos.) That usually does the trick. If you experience sensitivity (I have not) it is suggested that you discontinue use for 2-3 days.If what you are asking is, "Can I use these daily 365 days per year?" I don't see that suggested on the instructions. It is recommended that you use these every day until you finish the box. For faster whitening, use them twice a day. The directions suggest that you may use up to 2 boxes per year. I find that I have reached my "brightness goal" by using one box. I keep extra boxes available and will use them "daily" for a few days when I begin to notice that my smile is losing it's brightness (I can see this most easily in photos.) That usually does the trick. If you experience sensitivity (I have not) it is suggested that you discontinue use for 2-3 days.If what you are... » Read More It is recommended that you use these every day until you finish the box. For faster whitening, use them twice a day. The directions suggest that you may use up to 2 boxes per year. I find that I have reached my "brightness goal" by using one box. I keep extra boxes available and will use them "daily" for a few days when I begin to notice that my smile is losing it's brightness (I can see this most easily in photos.) That usually does the trick. If you experience sensitivity (I have not) it is suggested that you discontinue use for 2-3 days.If what you are asking is, "Can I use these daily 365 days per year?" I don't see that suggested on the instructions. « Show Less
917299
We recommend using the product for up to 10 days, or until your teeth are as white as desired. Doing this treatment on occasion is typical if you only need a slight touch-up. If your teeth are heavily stained then you can use this daily until your teeth show improvement.
2190211
I wear mine up to 12 hrs at a time, but shorter periods are recommended if possible.
1962759
I leave Retinol correxion Max wrinkle resurfacing on while I sleep at night. So, about eight hours. I do leave it on longer the weekends. About 10 hours then. It does sting a little but that means it's working. I hope that helps.
1049458
It depends on how white you want your teeth and how much coffee, tea, wine, and other staining food and drink you consume. For the first time you use a whitener, I would recommend doing a full course of 10-14 treatments over 2 to 4 weeks depending on how well your teeth handle the sensitivity (which is temporary and can be managed by taking days off in between treatments if you are sensitive). That initial treatment course will dramatically whiten stained teeth (getting a cleaning at a dentist's office prior to this is a good idea too). Afterwards, you will have to touch up every 6-12 months depending on your eating and drinking habits. You can also use once a week to once a month as maintenance. It depends on how white you want your teeth and how much coffee, tea, wine, and other staining food and drink you consume. For the first time you use a whitener, I would recommend doing a full course of 10-14 treatments over 2 to 4 weeks depending on how well your teeth handle the sensitivity (which is temporary and can be managed by taking days off in between treatments if you are sensitive). That initial treatment course will dramatically whiten stained teeth (getting a cleaning at a dentist's office prior to this is a good idea too). Afterwards, you will have to touch up every 6-12... » Read More It depends on how white you want your teeth and how much coffee, tea, wine, and other staining food and drink you consume. For the first time you use a whitener, I would recommend doing a full course of 10-14 treatments over 2 to 4 weeks depending on how well your teeth handle the sensitivity (which is temporary and can be managed by taking days off in between treatments if you are sensitive). That initial treatment course will dramatically whiten stained teeth (getting a cleaning at a dentist's office prior to this is a good idea too). Afterwards, you will have to touch up every 6-12 months depending on your eating and drinking habits. You can also use once a week to once a month as maintenance. « Show Less
1388378
I am not sure what you mean by that question sorry. Using once does make a difference and i wouldn't recommend leaving them longer than 30 minutes. They are a 2 week supply but i did not use them regularly. I did more like every other day. The teeth do become sensitive and i had a concern with the peroxide in it.
107390
I started seeing noticeable results after about 3 times of using the strips (I was using them every other day or so, so it took about a week). By about 5-6 times of using the strips, my teeth were definitely the color I was hoping for. If you used them every day, you could get them bright white in a week I'd guess.
1565075
I use it every other day and it last about a week and a half. I like it to look even darker so I might use a little more. :)
508722
I apply once a week. If you're just starting & your teeth are not very white, you might want to start off using it every day or every other day for a week.
470118
I've gotten different whiteners from dentists in the past. This is comparable. I was fine on the ones I had gotten from my dentists in the past. But this was extremely strong. I wore them about 8 hours while sleeping. My upper teeth were a little sensitive for a day or two but my bottom teeth were EXTREMELY sensitive for close to a week. So, I only use this on my upper teeth and only for an or two while I'm awake.
2022071
At least 8 hours a day. However, this means it will take longer to see results. I wore it on a new scar 20 hours a day for 10 weeks and saw no results...