Kimemily Pham (@excellenthairsalon), owner of Excellent Hair Salon & Spa Inc, Fremont, CA, is regularly challenged with color corrections. "The last time I did a color correction on my client, Veronica, was 35 weeks ago. Since then, she hadn't done anything to her hair. She came in wanting to be blonder. She arrived with 5 inches of new growth of a level 3 darkest brown.