My hair will revert if i try to flatiron it and it isn't 100% dry yet. Meaning when i blowdry my hair, i gotta make sure it's thoroughly dry or otherwise it'll revert as soon as i finish flatironing. Also, if my hair is 8weeks post or more, or if it's hot and humid outside, i am sure to spritz a holding spray. I use mizani or paul mitchell medium hold. which still gives me body and isnt sticky... Also u cant be afraid to use a high heat like stylists use. well maybe not that hot, but i usually do 180degrees if i want it straight. or 150 if i dont mind it fluffy...