Demi-permanent hair color is a type of hair dye that falls between semi-permanent and permanent hair dye in terms of longevity. It typically has an ammonia-free formula that contains a developer, allowing it to penetrate under the outer cuticle of the hair and last longer than semi-permanent alternatives, but not as long as permanent hair color since it doesn’t fully penetrate the hair shaft. Demi-permanent hair color is a "deposit-only" hair color, meaning that it only adds color and does not lighten the hair. It is ideal for those who want to try out a new hair color without committing to it permanently, as it lasts about 24 washes. Demi-permanent hair color is also great for refreshing and correcting color, but it is unable to lighten the hair. It is a little more permanent than semi-permanent color but less permanent than permanent color. Demi-permanent hair color is ammonia-free, so it won’t damage or dry out the hair the way permanent color will. It also adds more shine, is easier to grow out, and processes quicker than permanent color. However, it is unable to completely cover gray hair, although it will blend grays with the natural color.
Ingredients or materials of demi-permanent hair color are not mentioned in the search results.
Positive aspects of demi-permanent hair color include:
- Adds more shine to the hair
- Easier to grow out
- Processes quicker than permanent color
- Ammonia-free, so it won’t damage or dry out the hair the way permanent color will
- Ideal for those who want to try out a new hair color without committing to it permanently
- Lasts longer than semi-permanent alternatives
- Great for refreshing and correcting color
Negative aspects of demi-permanent hair color are not mentioned in the search results.
