I’m a bit gutted. My just turned 9 year old has white blonde hair ( so white it almost glows in photos) she’s always had lots of comments about how pretty the colour is but I’ve noticed lately that the roots are getting darker. I know it’s winter and hair tends to go darker but hers never has in the past. How old were your white blonde kids when it started to go dark and how long did it take to change. How dark did it go? Thanks.