What is semi-permanent hair dye?
Semi-permanent hair dye is a type of dye that does not penetrate deeply into the hair, but is deposited on the surface of the hair. Therefore, this type of dye does not last as long as a permanent dye, as it gradually fades after several washes.
Semi-permanent dye generally does not contain ammonia or peroxide, so it is less abrasive on the hair and does not damage the hair structure as much. Plus, it's gentler on the scalp and doesn't cause irritation or itching.
What is demi permanent hair dye?
Demi-permanent hair dye is a type of dye that penetrates the hair, but not as deeply as a permanent dye. This type of dye contains a small amount of peroxide (usually between 5% and 15%), which makes it last a little longer than a semi-permanent dye, but still not as long as a permanent dye.
Demi-permanent dye is ideal for those who want something longer-lasting than a semi-permanent dye, but don't want to commit to a permanent color change just yet. This type of dye is also less abrasive than a permanent dye, which means that It does not cause too much damage to the hair or scalp.
What is the difference between a semi-permanent dye and a demi-permanent dye?
The difference between a semi-permanent dye and a demi-permanent dye is mainly in the duration of the color. While a semi-permanent dye lasts only a few weeks, a demi-permanent dye generally lasts between 4 and 6 weeks.
Another difference is that demi-permanent dye contains a small amount of peroxide, which means it may be a little more effective at covering gray hair or lightening your hair a little.
Pros and cons of semi-permanent dye
- Pros: It is less abrasive on the hair and scalp, it does not contain ammonia or peroxide, it is a good option to try a new color without commitment.
- Cons: It doesn't last as long as a permanent dye, it doesn't cover gray hair as well, it doesn't make big color changes.
Pros and cons of demi permanent hair dye
- Pros: Lasts longer than a semi-permanent dye, covers gray hair better, can lighten hair a little.
- Cons: Does not last as long as a permanent dye, contains peroxide which can be a little more abrasive for hair than a semi-permanent dye.
I am Sebastián Vidal, a computer engineer passionate about technology and DIY. Furthermore, I am the creator of tecnobits.com, where I share tutorials to make technology more accessible and understandable for everyone.