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Hair Dyeing

How long does semi permanent hair dye last

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What is semi permanent hair dye and how does it work

Boring technical information that you can skip:) There are a few different methods of semi permanent hair dye, but the most popular is a process called oxidative dyeing. This method exploits an oxidation reaction where hydrogen peroxide (H) interacts with other chemicals in the form of ammonia (NH), which breaks down into water and nitrogen gas. The chemical reactions change color molecules in your hair to new ones, causing them to be only temporarily dyed. In contrast, regular dyes react chemically with your proteins and can permanently alter or damage your natural pigment-producing cells as they try to break open these pigments from within themselves that you’re applying externally on top of it all.

How long does semi permanent hair dye last
@daikohairdye

How long does semi permanent hair dye last?

The simple answer is that semi permanent hair dye lasts up to six weeks. But in reality, there are many factors that affect this time span.

The way you wash your locks can stretch the life of these vibrant colors and help them last longer than average. For example, if you use a clarifying shampoo just once or twice per week it will remove any product buildup on your tresses while not stripping out important natural oils like silicone-based products may do when used more often. So instead of using conditioner every day after showering, try doing so only three times a week as well for an optimal color lifespan!

If you’re looking into prolonging the wear time even further then consider switching over to a dry shampoo which doesn’t contain water at all.

Can you still wash your hair with regular shampoo or conditioner after using semi permanent hair dye

Yes, but as we advised above, try to use a clarifying shampoo just once or twice per week as it will remove product buildup on your tresses while not stripping out important natural oils like silicone-based products may do when used more often.

How many washes does semi permanent hair color last?

Usually it is 4-10 times. But a more frequent result is 6-7 washes.

Does semi permanent hair dye wash out completely?

Yes, most semi permanent hair dye fades out over the course of about six weeks, which is due to both natural factors and detergents in your shampoos.

blue semi permanent hair dye
@punkyhaircolour