There are three types of hair color, permanent, semi-permanent and temporary.
Temporarily color – holds color through about three shampoo washes. Color is gentle and used to try out color in a subtle way (without damage to the hair shaft).
Semi-permanent Color – is color that can be washed out after 6 or more shampoos. Semi-permanents color and coat the hair shaft.
Permanent Color – Is a dramatic change of color, changes between 2-6 shades brighter or darker. Permanent color is best applied by an experienced individual (this method involves chemically lifting the hair and penetrating the cuticle layer, breakage can occur if the color is applied incorrectly).
To apply the permanent haircolor the scalp should be examined for any abrasions. (If the scalp is not normal do not apply hair color). A strand and patch test must be done first to test your hair and skin’s reaction to the color. If there are no problems then proceed carefully. The hair is then sectioned into four parts. A protective cream is then applied to the skin around the entire hairline. Protective gloves should be worn while applying color.
Mixture should be applied to the darket part of the hair using 1/8 inch sectioning. Apply the mixture to the hair from roots to ends. After all the mixture has been applied to all sections, pile the hair on top of the head and allow it to process for specified time. The mixture should not be rubbed into the scalp. After achieving the desired shade, rinse and shampoo. Remember, if you have a relaxer, wait at least 4 weeks to apply color.