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Semi-Permanent Hair Dye

Dyeing your hair is one of the best ways to express yourself. But what if you don’t want to make a permanent change? The answer is semi-permanent hair dye. Browse OnBuy’s huge range of temporary hair dyes and find your next look right here. Whether you want to go pink, big it up in blue, or opt for a rainbow of flashy colours, we’ve got all of your unicorn hair dreams covered.

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Looking to buy Semi-Permanent Hair Dye?

Dying your hair with non-permanent dye can be a great way to level up your look, especially if you don’t want the results to last beyond your holiday, event, or even weekend. OnBuy has a huge range of different semi-permanent hair colours to choose from.

What types of semi-permanent hair dye are available?

There are a few different levels of semi-permanent hair dyes. The type that you apply to bleached hair which washes out slowly, ones that you can put in which fade after a few washes, and finally, those which are applied to your hair and wash out immediately.

Wash-in wash-out hair dyes are the types that wash out of your hair within a few washes. They’re great for when you have a special weekend planned and want to change up your look but still need to be back to your natural colour by Monday.

Temporary hair dyes such as hair chalks and coloured gels will wash out the next time you shower. They’re great for kids or for wearing to festivals as they often come in really vibrant colours that are perfect for flashy looks and hairstyles.

Semi-permanent hair dyes commonly refer to dyes that take a little longer to wash out - typically up to around 30 washes. They are great options for those who like to switch up their look fairly regularly and are ideal for those who like to bleach and dye their hair bright colours. Although they are available in more neutral hues too.

Do I need to do a patch test with temporary hair dyes?

Yes! You always need to do a patch test whenever you are dyeing your hair as allergies can develop at any time. Dyes that are black or darker in colour are more likely to elicit a reaction but regardless, you should always do a patch test to make sure there’s no reaction to your chosen dye.

To perform a patch test, squeeze a little of the dye out onto a gloved finger and dab it behind your ear. Wait for 24 hours and if there’s no reaction then you can go ahead and use it all over your hair. If you feel any itching, stinging or burning, or experience swelling, wash the patch really well and don’t use the dye. If your symptoms persist for more than a day, speak to your doctor for advice.

Frequently asked questions about semi-permanent hair dye 

What is semi-permanent hair dye?

Semi-permanent hair dye is a short-term solution for colouring hair. In comparison to permanent dye, it is far less damaging, and the formula typically contains no ammonia or peroxide. It works by coating the surface of the hair, rather than penetrating the cuticles. 

Does semi-permanent hair dye wash out completely?

Eventually, yes! Semi-permanent hair dye will wash out completely after a few washes as it doesn't bind to the hair strands in the same way that permanent dye does. Some shampoos and conditioners are so intense that they can even speed up the stripping process. To ensure your semi-permanent colour lasts as long as possible, invest in purpose-made products for coloured hair.

How long will semi-permanent hair dye last?

Semi-permanent hair dye lasts for about six weeks (depending on the brand), but you need to take care of it. Chlorine from swimming pools, intense sunlight, and some types of shampoo can make it fade faster, so bear this in mind.

Can a semi-permanent hair dye damage my hair?

While it won't damage your hair as much as permanent dye could, you should still take proper care of your tresses post-treatment. To take good care of your hair, consider investing in nourishing conditioners, hair masks, and heat protection.

What's the best way to rinse off hair dye after colouring?

First of all, you need to soak your hair with water and gently wash it with colour care shampoo (typically included with most box dye sets). Then, keep rising your hair until the water runs clean, and apply conditioner. Leave the conditioner to work its magic for a few minutes before rinsing, and then leave to air dry. 

Customers love our best-selling Semi-Permanent Hair Dye

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