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What Differences between Semi-Permanent and Permanent Hair Color
Semi-Permanent Hair Color
- Does not damage the hair.
- Lasts from 4-6 weeks.
- Gradually fades out until the hair is the same shade it started from.
- Semi-permanent hair color is deposit only, that is, it may temporarily darkens but wont lighten the color of your hair.
- Since it does not damage the hair, you may reapply them as often as needed.
- The only downside is their limited ability to cover gray hair.
Permanent Hair Color
- Permanently changes the hair color. Your own hair color must grow out to fully remove this process.
- It can be reapplied as substantial outgrowth of original color becomes noticeable.
- Each application damages the hair further, so it is preferable to apply the color only to the new hair growth.
- Permanent color can either lighten or darken the original shade.
- Permanent hair color also covers gray hair extremely well.
- The downside is that you must grow the hair out and trim it off to remove it.
- It can sometimes be dyed back to match the original color although it is extremely difficult to match the shade exactly. This is when a professional colorist really earns their money!