Independent tests were carried out amongst one hundred women in the UK. The results of the tests came as something of a surprise to many.Following the testing of the straightening irons,The Clarke irons cost around fifty pounds less than the rival GHD Straighteners irons, and are able to reach temperatures of up to two hundred and thirty degrees. the women were told both the brand and the cost of the GHD Hair tyfitsb20110720 straightening irons. Surprisingly fifty seven percent of those tested said that they preferred the Nicky Clarke irons, with sixty three percent of women with curly hair claiming that the Nicky Clarke ones had performed better on their hair.