Hair color with Coppola Keratin?

[terrapins]

Hello,

I have been researching the Coppola treatment for straightening/de-frizzing. I am curious to know what type of color is best for 3a hairand Coppola. I have dishwater brown and like to lighten and cover gray. Don't like all the dryness that comes with coloring/lightening. I have been highlighting and coloring at a salon, but drying and expensive. Any ideas?

Thanks for any feedback.

3a- Fine, thick hair, frizzy