* Semi-permanent color fades: Semi-permanent color fades over time because it only coats the hair shaft and doesn't penetrate deeply. This means that the permanent color will be applied to your natural hair color, not the semi-permanent color.
* Color Matching: When choosing a permanent color, select one that matches your desired end result, taking into account your current hair color after the semi-permanent color has faded as much as possible. You may want to do a strand test before applying the color to your entire head.
* Hair Condition: Assess the condition of your hair. If your hair is damaged from previous coloring or other treatments, it's a good idea to deep condition it before applying permanent color. Damaged hair can absorb color unevenly.
* Potential for Change: Since semi-permanent color doesn't alter the hair's underlying pigment, the permanent color will behave as it normally would on your natural hair. The fading of the semi-permanent color will not affect the long-term results of the permanent color.