Hello,

I have had two keratin treatments, one last week at Ulta which was reasonable. The first treatment at a different salon and it lasted four months exactly. That first treatment was so expensive I had to start coloring with Revlon Colorsilk and used variations of the blonde (medium or dark ash) shades. Having issue with getting the gray covered and literally think I went grey overnite. I am coloring roots every three weeks. Any suggestions/ low sodium brands that won't wreck the keratin? My sylist says that Sally's has some good formulas but she's not sure about content.

Thanks for your help!