OK to Mix
I found this colour too dark for my very grey hair (regrowth showed up too much) and Natural Light Blonde was a bit too light so followed what another reviewer had done, and mixed the two colours. Instead of mixing equal amounts I used two parts of light blonde and one part of medium blonde - measuring and mixing only the amount required and recapping the remainder. The colour is great and if it washes out without too much regrowth showing I'll continue with this ratio. Wouldn't mind using half and half but depends on how the regrowth goes. Thanks to reviewer who suggested mixing to get the right colour.