Hair straighteners, ceramic & tourmaline?

which brand is the best? what is the deal with tourmaline straighteners?Hair straighteners, ceramic %26amp; tourmaline?
CHI is ';DEFINITELY'; The BEST Brand !Hair straighteners, ceramic %26amp; tourmaline?
I have a conair infinity and love it... Its cheaper now then it used to be... And the tourmaline IDK what teh deal is looks very complicated to me
CHI is the best brand!

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