Hey Janani, I have Philips Selfie Straightner. I use it for 2 year but my hair not gonna frizzy. I use heat protection gel. Now I'm using Pantene Oil Replacement as a heat protection gel.
First use Mild shampoo or Argan oil shampoo for reduce frizzyness& dryness. I use Tresemme Keratin Smooth Shampoo For 4 years & it's really good.
Second use Better Heat protection gel cream.
Here are some options for best Heat protection spray. Both are best. You can use any one. But i recommend you to use Wella or Tresemme.
Here are some option for hair straightner. Both are best. You choose what you want