Hair needs nourishing from the outside in.
None of the over the counter brands do this,you need to be using salon quality shampoo,conditioner and weekly treatment.
You need to use the correct styling products with thermal resistant,ie blowdry cream and serum prior to using any headted styling appliance.
I retail a brand wich can also be bought at the wholesalers.
I will be happy to answer further questions x
Ps.i know it sounds so boring,but the fact is we are what we eat ( and drink lol ) peeps don't realise how massively this affects the condition of their hair,hth x