Again, I'm not familiar with this trick. I used Socolor for years and agree with Star that the 500 series gives great coverage. I now use Verocolor and they have a NG+ series that covers extremely well. For 50% or more or resistant grey hair you can either formulate naturals, golds and reds, if desired for a customized formula. Or you can use the NG+ series. For best results, use 20% developer and let process from 45-60 minutes. I have 2 clients that process for 70 minutes. It looks wonderful! But I will do some 'snooping' regarding your salt trick! |