This flat iron claims that if your hair is wet, you can flat iron it dry and it's perfectly safe for your hair. This was not true for me. I have thick, wavy (bordering on curly) hair that is quite healthy. I found that the more I used this on my hair while it was wet, the worse my hair looked. It damaged my hair a lot, causing fly aways and split ends, as well as making my hair frizzy. I had to let my hair air-dry, then blow dry it a little before using this flat iron. Then, not even a year after I bought it, it stopped working. The fuse just blew and I have no idea why. Of course the store warranty is only good for 90 days, and it wasn't worth the shipping to have it replaced through the company so I just bought a new and better flat iron. I honestly don't recommend this flat iron unless your hair dries quickly or doesn't damage easily, or if you can afford to buy really expensive heat-protecting products. Effectiveness It straightened my hair, but it damaged it profusely in the process. Durability Broke (fuse went out) after a little less than a year of regular use.