Goldwell colour remover

[Pinkandfluffy]

Hi can anyone tell me which would be more damaging to my hair a goldwell colour remover or a bleach bath either one would Beverly done by a qualified hairdresser ? The hairdresser has suggested goldwell colour remover the a 7.44 copper in Iona colour range to archive the colour I would like . The hairdresser has done a colour strand test using the goldwell colour remover. which took the red / auburn shade I have to a golden colour.
Thankyou