This is what she recommended:
1. Before you straighten, understand that fine hair is much more susceptible to damage compared to other hair types. It can get burnt and heat damaged far more rapidly. Don't straighten wet hair or even damp hair. The steam produced as a result causes more internal damage to the hair. Ensure hair is 80 to 90 % dry before straightening.
2. Invest in a hair straightener that is branded, good quality and has ceramic, tourmaline or titanium plates. Ceramic plates ensure that heat is distributed evenly because they get hot quicker, stay hotter longer and leave hair smooth and shiny. Ceramic hair straighteners work well on even the most difficult to manage hair. Buy a straightener with a width of 1 to 1.5 inch maximum.
3. Don't use temperature higher than 180 degree Celsius. Any higher and you risk damaging fine hair. So accordingly look for a styler that offers lower temperature setting as well.
4. Use heat protective styling serums on hair before straightening. They help protect and make hair look more silky & smooth.
Brands you could consider include (I have seen all 3 at Alfa -3, Irla)
Do you have secrets for the perfect straight hair?