Both work great for all hair types.
Here is our recommendation.

Titanium: has a good heat conductivity and has little temperature variation, making it to be less prone to heat damage some professionals believe that titanium transfers heat better and gets hotter - this being great for those who have couse/thick hair.

Tourmaline/Ceramic is great for hair extensions, great for soothing the hair cuticle, providing frizz-free results, y emitting negative ions that counteract the positive ions found in your locks, ithelps not only straighten but also smooth and shine hair., while fighting frizz and locking in moisture.

Yes all of our lovely hair tools are dual voltage anf work world wide!

*Except the Beyond Blow Brush

Our hair tools come with a 1 year warranty.

For more information refer to our policy here:

https://www.aashibeauty.com/pages/warranty

Our curling revolver has to be our #AashiAngels fav!

Check out our reviews:

https://www.aashibeauty.com/pages/reviews