What is max time I can leave it on?
1121500
Use it twice a day - put it on and leave it. I like it because I like a "wet" look to my hair and it leaves my hair with this look initially and then dries as does any liquid . I presume you could blow dry it and style after application. To my understanding the drug affects the scalp not the hair.
1121501
Once applied, it actually dries on your scalp and you do not wash it off until your next shampoo. Everyone is different so be sure to read the directions that come with the product.
1121502
My bf wakes up takes a shower puts it on his head goes to work comes homes takes a shower puts it on again same routine every day says to use twice a day or it doesn't work good.hopes this helps.
243463
It can be set for more than 3 hours. I just went up to 12 hours to see if it has a maximum but I don't think it does.
1414658
You can set the timer for up to 180 min. I believe if shuts off after 180 min if you do not set the timer.
72820
I use my for childrens church and never left it on very long, so I tried it today It was still on an hour after I used it. But the Kids and I really do like it, if that helps :) Good luck
1939786
No you can leave it on all day I just turn mine off to conserve a minor amount of electricity.
1977991
Expanding on Theresa's answer, I left mine on for hours recently and it did not turn off.
54178
You can leave it on but it doesn't read continuously. You have to press a button to get the current reading. Therefore, there is no point in leaving it on unless someone is going to press the button and check on it at intervals during the night.
437889
I haven't really taken it off its charger, so I'm not too sure. I think about three hours on minimum settings.
93754
ON time can be set from 1 second minimum up to 40 minutes max, and OFF time from 1 minute up to 8 hours max.
1776831
No. However, you can do 1 minute. 1 minute is the minimum time for on off duration.
2019248
I have left it on while going to church 2 plus hours. I would not recommend it as the fire department does not recommend leaving electric units on once you leave the house. Definitely have smoke alarms if left on overnight.
243462
The one I have goes up to 19 hours. For all practical purposes you can go to 19 hours, 59 minutes an 59 seconds or 20 hours.
2238312
You can do whichever you are comfortable with. I found, after inadvertently leaving it on all day, there is no trouble at all. So now, I just leave it with the blue light blinking (transmitting) round the clock. Whether this is good practice, I don't know. But, I have seen no hazard doing this in over a year and a half.
1262802
I leave it on for approximately 5 minutes, sometimes a little less, seems to work great!
298939
I don't think I would worry about leaving it on overnight. We had it running for 8 hours at a time. The wire that burned out did not cause any problems other than making the unit inoperable.
625073
I don't believe there's any limit to how often you can use it; you can use it every day if you like. However I think once a week may be okay. I usually leave it on till I get sick of it; but generally I'd say half an hour would be sufficient.
703296
No, you can only use it to set the number of hours it should stay on before turning itself off.