About Your Semi-Permanent Hair Dye

About Your Semi-Permanent Hair Dye

Are you getting the creative colour itch? For all of those considering a new colourful journey when it comes to your hair, we’ve got you! Keep reading to get the full low-down on semi-permanent hair dye and why it is so highly recommended to any hair colour enthusiast! 

If you’re someone that enjoys a new hair colour every 1-2 months then you should really know about semi-permanent hair dyes. Continuously dyeing your hair with permanent hair colours won't give you the freedom to change your colours so often, and can leave your hair damaged. Semi-permanent hair dye is a formula designed to colour your hair for a shorter amount of time and gradually fade until it has eventually washed from your hair.


Featured Products

Vegan Friendly Free From
Manic Panic High Voltage® Classic Hair Colour 118ml (Psychedelic Sunset™)
Manic Panic High Voltage® Classic Hair Colour 118ml (Psychedelic Sunset™)
UV Reactive Vegan Friendly Free From
Manic Panic High Voltage® Classic Hair Colour 118ml (Atomic™ Turquoise)
Manic Panic High Voltage® Classic Hair Colour 118ml (Atomic™ Turquoise)
UV Reactive Vegan Friendly Free From
Manic Panic High Voltage® Classic Hair Colour 118ml (Siren's Song™)
Manic Panic High Voltage® Classic Hair Colour 118ml (Siren's Song™)
UV Reactive Vegan Friendly Free From
Manic Panic Amplified™ Semi Permanent Hair Color 118ml (Hot Hot™ Pink) - EU
Manic Panic Amplified™ Semi Permanent Hair Color 118ml (Hot Hot™ Pink) - EU

About Semi-Permanent Dyes

Get the look, change the look or add to it! With semi-permanent dyes, permanency is not an issue. Designed to wash from your hair with ease, there is nothing to hold you back when it comes to visualising your new look! Even better, semi-permanent dyes are that extra little bit special when it comes to their formulas. 

We know that a habit of constantly dyeing your hair and changing up your colour may seem to be unhealthy for your hair, but semi-permanent dyes have put a big stop to this. These dyes actually have zero contact with your hair cuticle leaving it healthy and robust during the dyeing process.
Rather than directly opening the hair shaft and depositing the dye within the hairs cuticle causing a long-lasting colour change, semi-permanent hair dyes deposit the colour onto the surface of the hair shaft. Meaning that, instead of resulting in a long-lasting colour that may cause damage, your temporary colour leaves your hair in its original or an even better condition.

At Manic Panic, we want to give all of our fans a bright and colourful but also safe and healthy experience when it comes to using our products. Check out some of the great benefits that come with using the Manic Panic hair dyes:


100% vegan and cruelty-free


Tested on celebrities, not animals.


Formulas fortified with 98% conditioner 


Free of all nasties including peroxide, parabens, ammonia, gluten, resorcinol, PPDs and Phthalates. 


Have been a leader within the creative colour industry for over 40 years.


All dyes can be combined and mixed to create your very own custom colours.



The Duration of Your Semi-Permanent Dye

As these hair dyes are designed to eventually wash out, their duration time can usually be estimated according to the pigmentation of your chosen colour. 

Pastel shades such as Manic Panic’s Dreamsicle and other very light colours do tend to be the first to fade. They are a lot less pigmented which gives them that very pretty, soft appearance but this does mean that they will only be sticking around for a 2-4 week period until they have faded entirely. On the other hand, with more pigmented colours such as the Manic Panic blue shades or reds, you will find that they may last longer than expected. Higher pigmentation makes for longer-lasting colour, so these deep rich shades could be lasting for up to 8 weeks. 

The duration of your hair colour can be estimated as we’ve explained above, however, this also relies greatly on the way in which the hair is cared for whilst coloured. There are a number of things which you should take into consideration when wondering just how you can make your colour last for as long as possible:


Wash your hair with shampoo as infrequently as possible. We suggest 1-2 times a week.


Wash your hair in cool/cold water. Washing your hair in hot water will strip the colour from your hair and begin any fading much earlier. 


Ensure you are using products safe for coloured hair. We highly recommend avoiding shampoos and conditioners that contain sulfates and/or parabens. 


Heat is one of the main contributors to the fading of hair colours. If you can, avoid styling your hair with heat, however, if this is not possible always use a heat protector.



Before You Colour Your Hair With Semi-Permanent Dye

Semi-permanent hair dyes are great for the health of your hair, however, here at Manic Panic we always stress the importance of a patch and strand test. 

Patch test

It is very important to perform a patch test 24 hours before you plan on dyeing your hair. This test is done by applying a small amount of the dye to the crook of your arm (inner elbow) and/or just behind one of your ears. Once it has dried, leave the area undisturbed for 24 hours.
Performing a patch test will allow you to discover any allergies or irritations that the dye may cause to you before committing to a full application. 

It is important that if you do discover any sort of irritation or reaction that you do not continue to dye your hair and source advice from your doctor. 

Strand test

A strand test is highly recommended for first-time dyers or when you switch to a new colour. The strand test is important as it gives you an idea of how your chosen dye will look on your hair before you colour it all. These are very easy to complete, simply take a small strand of your hair (we recommend picking from the back towards the bottom, just in case) and applying your chosen dye to it. Leave this for 40 minutes to develop before rinsing out with cool water, and there you have your result. 

Before you colour your hair, to give you the best chance at achieving your desired result we suggest you partake in a small deep cleansing session using your favourite clarifying shampoo. It is amazing what a good clean and wash can do to positively benefit your new upcoming colour and maybe even contribute towards keeping this bright new look alive for a little longer! To make your life even easier, try our Prepare To Dye Clarifying Shampoo specifically created to get your hair prepped correctly for any Manic Panic colour. 

Why We Love Semi-Permanent Hair Dyes

We’ve mentioned just a handful of reasons why we and many others swear by semi-permanent dyes for our colourful hair looks, but let's just recap on that real quick! 

Healthy hair
Semi-permanent hair dyes have skipped all those nasty chemicals and toxic ingredients that can be found in many beauty products nowadays. Instead, you will find that these dyes are made up of ingredients that keep your hair healthy and rejuvenated, not to mention the shine you’re left with!

Vegan and Cruelty-free
Manic Panic only provides vegan and cruelty-free semi-permanent hair dyes. Ever since the beginning of the brand, ensuring our products are safe for all to use and has never interfered with the lives of other living creatures has been a top priority. We are a strong-willed company and will continue to lead on an ethical path.

Fun and creative
Manic Panic believes that dyeing your hair should be exciting and fun. Semi-permanent hair dyes give you the freedom to create, and keep creating! No need to worry about a forever colour; changing your mind isn’t such a problem in the world of semi-permanent dye. You could even use a temporary dye to experiment with colours and styles before committing to a more permanent look! 

We hope that we have answered a lot of your questions when it comes to semi-permanent dye, but just in case we missed anything out contact us at sales@manic-panic.co.uk or via our social media! Keep creating and remember to tag us @manicpanic_uk.



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