This is my Week 6 of using the Flasher 2.0 and although my armpit hairs hasn’t been totally gone yet but I did see improvements in terms of rate of growth and amount of hair growth. On Week 4 I had a contact burn (I was using level 7 then) and the skin literally peeled off l; it was very painful. I messaged Nood and their Customer Service was impeccable. I was about to return the product however I noticed the difference and so I decided to keep using it. I only wish the Flasher 2.0 was hand held friendly. It’s awkward to use at times. Better if there’s slip-grip. Also I hoped the kit came in with eye protection. The flashes are VERY BRIGHT it felt like it wasn’t safe using it without eye protection (I had to use face towel to cover my eyes; shades just won’t do, it’s that bright!). Pain score every time it flashes is 7-8/10 for me. But no pain no gain.