I am so glad I found Martijn - based on the 2 experiences I've had with him, he's an outstandingly talented hairdresser and definitely a blonde-specialist! I wanted to get rid of the yellow tones in my hair and go full platinum - he excelled it. Next time I wanted to go a bit more natural and darker - he excelled it again (this time with lowlights). He does exactly what you want plus adds his own magic touch. 10/10 would recommend!