Single Process Hair Color
A single process color, also known as a root color, is most often used for grey coverage/grey blending. Single process colors can be any color type, permanent, semi-permanent, or demi-permanent, depending on the desired outcome.
Permanent hair color provides 100% grey coverage, while demi will cover grey up to 70%, and semi is used for grey blending instead of coverage.
Hair Studio 7 uses Redken, Loreal, and Goldwell colors to ensure a perfect blend for your root color and single process every time.