What is demi permanent hair color?

Demi-permanent hair color is a semi-permanent hair color that lasts for about 28 shampoos. It does not contain ammonia, so it is safe for those with sensitive scalps.

Demi permanent hair color can be used to cover grey hair and blend roots together (if you’re a brunette going blonde or vice versa).

Which hair colors contain ammonia?

Some hair color brands contain ammonia. Ammonia is a chemical that opens up the hair shaft so the color can penetrate the hair. If you have ever experienced a burning sensation when applying permanent hair dye, chances are it was due to high levels of ammonia in your shampoo or conditioner.

Ammonia-free hair colors are very popular with those who suffer from irritated skin or scalp issues due to allergies (a common case), but they also tend to cost more than traditional permanent dyes.

How long does demi permanent color last?

How long does demi permanent hair color last?

The longevity of your demi permanent hair color depends on how often you shampoo your hair, what products you use and how much time has passed since you dyed it. If you’re looking for a longer-lasting option than regular dye, try using a semi-permanent or permanent dye instead!

Demi-permanent is a great option for those who are looking to refresh their color between touch-ups.

Demi-permanent is a great option for those who are looking to refresh their color between touch-ups or to cover gray. You may be wondering how it differs from permanent hair color. The biggest difference is that demi does not contain ammonia, which can cause dryness and damage the cuticle of your hair. Demi also does not lighten your hair, so if you have platinum blonde locks, you will probably need something more intense than this type of product (although there are some demis that lift color).

Demi-permanent will give you results similar to what you would get with semi-permanent—the main difference being that it fades gradually and evenly rather than washing out in one go as with most semis. In addition, because demi doesn’t contain ammonia and therefore doesn’t lift pigment from inside your shafts (which can cause brassy tones), it’s a good option for covering gray or focusing on areas within the same shade family where there isn’t much contrast between light and dark areas like around an eye or cheek regions.