how long does it last?
379620
I use the mouth guard option 2x a week, the rest of the day's I add some whitening gel on my toothbrush with my toothpaste. I still have more than half of the bottle left. hope my answer helped
413498
It will last a couple of weeks at least, maybe longer. Mine doesn't last longer than a couple of weeks, so I can't say how much longer than that it will keep.
1329287
I can't say the number of days but it lasted longer than I thought it would. A little goes a long way so you don't use much each day.
2077973
If you're asking how long it will last, I would say for about 3-4 months maybe even longer!
972158
So far ive only used it for 5 - 10 min at a time. I use it everyday for the last 2 weeks but i use it several of times a day. I just now today recharged it. So id have to say it lasted a long time. Hope that helps some.
418248
It depends on how you use it, generally speaking, it should last for at least 2 to 3 months.
1960501
Not sure, I've only had it a couple of months. With normal usage it should last at least a year or maybe more.
1184976
It last a lot! I have kept it on for two days in a row. With nonstop use it can last like 10 hours
727990
It last for awhile. My daughter hasn't really used the key board that much yet. But have to charge it for at least 4 hours before ya use it.
1523967
I have mine for about a year and it is fine. It should last a long time. A little goes a long way.
1589036
I have had it for almost a year and have not replaced it yet....if you keep it clean it lasts a long time depending upon how much its used.
1707569
It actually lasts a long time, at least two months. I use it in the morning and the nighttime cream at night, so it is hard to say. I love this product, tried many different ones before staying with this one.
2036722
Not exactly sure. I think around 20 minutes. But it lasts long, several weeks.
1925590
I believe the product states that it only lasts for approx. 4 months. I'm not positive, but I think I read that on the directions.
2166855
Usually about three months. It depends on how long you use it for each day. If you use it 8hrs a day, it will probably last a month. If you use it less, it will last longer. Hope this helps.
1288504
It lasts a very long time, I was pleasantly surprised by that. i have liked the product. no amazing results or anything, but i would recommend it.
1037551
Depends how long you have been using it. When we first bought it it lasted 8-9 hrs. After about two months of use (not usually longer than a few hours unplugged) it has dropped to around 5 hours.