The only hairs that are actually killed are the ones that are zapped in the growth phase. Just because a hair falls out doesn’t mean the follicle is dead. Getting hairs to fall out and actually killing them are two different things. This is why the repeated treatments are necessary. Not all the hairs you zap are in the “growth phase”. You will have to go over the same areas several times over the course of months to eventually catch all of the hairs in their growth phase. And of course, as you are zapping away, it is likely that your hormones are working against you and sprouting new follicles. This is one more reason why I like the Tria as a concept. I anticipate the Tria is going to save me lots of time and lots of money.

If you don’t follow the protocol, you won’t get satisfactory results. There is no cheating or shortcuts that will cause this device to magically work. Follow the protocol and you will get results.
 

Improvements I would like to see in future Tria:
-larger treatment head
-longer battery life
-lighter weight
-less “bulk” around treatment tip so it is easier to see exactly where you are zapping

Some people have asked if I am associated with Tria or was given the product for free or paid to write this review, but I purchased my Tria on Amazon and have not been given any incentive, payment or free product. This is a genuine review based on my first hand experience with the Tria and my accumulated knowledge of LHR. I hope this review is helpful for folks looking for at-home laser hair removal.