Yes, semi-permanent dye does change hair color, but in a specific way. It's important to understand how it differs from permanent dye.
How Semi-Permanent Dye Alters Hair Color
Semi-permanent hair color, often called a gloss, is designed to enhance the existing tone of your hair. Here's what that means:
- Adds Shine: It brings a glossy finish, making hair look healthier and more vibrant.
- Refreshes Tone: It can revitalize faded color, returning it to its original richness or adding subtle color nuances.
- Changes Tone: According to the reference provided, semi-permanent dye "changes tone without lightening or darkening your hair." This means it can shift the color's undertone—for example, making a brassy blonde more ashy or adding warmth to a dull brown.
- Does Not Lighten or Darken Significantly: A key characteristic of semi-permanent color is that it does not drastically lighten or darken the hair. The change is more subtle, focusing on the overall tone.
Comparison with Permanent Dye
| Feature | Semi-Permanent Dye | Permanent Dye |
|---|---|---|
| Color Change | Changes tone, adds shine, refreshes color | Can significantly lighten or darken hair |
| Lightening Ability | Does not lighten | Can lighten hair, often with the use of a developer |
| Darkening Ability | Cannot darken significantly | Can darken hair by multiple shades |
| Longevity | Typically lasts a few washes (6-12 washes), fades gradually | Longer-lasting, grows out with roots |
Practical Examples
- Brassiness: If your blonde hair has become brassy, a semi-permanent toner can neutralize the yellow tones.
- Faded Color: If your red hair has dulled over time, a semi-permanent gloss can bring back the vibrancy and shine.
- Experimentation: Semi-permanent dyes are a good option if you want to try out a new shade without a long-term commitment.
In short, semi-permanent dye offers a way to alter the tone and vibrancy of your existing hair color, rather than making drastic changes.
