How To Make Semi-Permanent Hair Dye Permanent? [10 Tips & Important Facts]

Do you want a unique hair transformation but don’t want to stick to a permanent complexion? Then semi-permanent hair dye is a great success. As users get to try a fresh new look without having to use a new color for the long term.


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The key question is if you can make your semi-permanent hair dye permanent so that it lasts as long as you want it to. This post will answer this key query in detail.

Let’s see: How to make semi-permanent hair dye permanent?

It is impossible to turn a semi-permanent hair dye into a permanent dye. However, you can keep your favorite semi-permanent for long-lasting by following some tips. For example, use cold water rinse, avoid frequent hair wash and sunlight exposure, soak dyed hair in white vinegar.

The semi-permanent composition will last roughly 4-6 weeks. You can simply add the same color to your hair for touch-ups if you love a shade during that era. You do, meanwhile, have the option of trying anything different.

Scroll down to get all guidelines about holding semi-permanent hair dye for a longer timespan.

Can You Make Semi-Permanent Hair Dye Permanent

You can’t make a temporary color everlasting. As it only lasts unless you wash it. Likewise, semi-permanent dyes typically have 8–16 washes. It also depends on the brand as well as how you manage the dye must be prevented.

It’s not possible to make it permanent. However, depending on the required effect, it can be made to last an incredibly long duration. Many of us stylists have found methods that enable a semi-permanent to stay a long time.

We choose special colors which will last a lot longer. Yet, it will usually necessitate lightening your hair color in a controlled situation. That is complicated and time-consuming and takes a great deal of care. It’s also a hard process.

Is Semi-Permanent Dye Different From Permanent Dye

Permanent and semi-permanent hair colors differ in several ways.

  • The chemical structure is one distinction.
  • Usually, semi-permanent dyes are vegan and without inhumane treatment.
  • They don’t contain peroxide or ammonia.
  • So they won’t affect your hair.
  • Unlike other dyes, semi-permanent hair dye does not dramatically change the hair color.
  • Rather, it just wraps the hair shaft’s base.
  • This results in a simple, obvious fix with only short and permanent effects.

How To Mix 20v With Semi-Permanent To Make It Permanent Hair Dye

Semi-permanent color is meant for use as a receipt color. It can highlight the present color in several shades, but it cannot lighten it. Permanent color needs ammonia or an ammonia substitute to expose the hair’s cuticle layer.

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By allowing the pigment to be extracted and color to be applied. This is done by integrating the ammonia and peroxide developers. The warmer or brighter the tint will be, the more the developer amount. There is indeed a logic behind it.

Peroxide is harsh on hair because it destroys openings in the cuticle layer to let pigment molecules exit. Due to the sheer interaction of free radicals in peroxide, using 20 volumes with a Demi color may make the color a bit brighter or hotter.

But it will also style your hair rougher and the color will disappear sooner. I would still not use any developer with a semi-permanent color that doesn’t need one because the peroxide will react with the color application.

Can I leave semi-permanent dye in my hair overnight?

Though semi-permanent dyes are less toxic than permanent dyes. They also include elements that must be used as per package recommendations. You will also derive no additional benefit no matter how long you keep the semi-permanent dye in your hair.

I imply the hue isn’t gonna have any brighter, deeper, or stronger. Expert hair stylists recommend that the durations are given by each product be fulfilled. There’s a point why they’re branded in labs.

We potentially cause an allergy if they are not factored into the equation. Hence, though I urge you to follow the instructions carefully. if you put it in more than indicated, it will not ruin your hair.

Take note, that unless you want the dye to stay longer or the color to be super vivid and luminous. You can keep it for a hundred hours. The color and stability will stay the same. Otherwise, you’d be putting yourself at risk of acquiring an allergy.

10 Tips To Make Semi Permanent Hair Dye Last Longer

It all depends on the color you choose. I guess that a blonde’s deeper or bright color usually lasts than a brunette’s chestnut shade. Likewise, red passes away, but here are some guidelines:

1. Increase The Setting Time Of Semi-Permanent Hair Dye

Allow the color to soak in for a long time. Semi-permanent dyes are safe to put in for long periods. Because they have pigments and don’t contain bleaching chemicals like ammonia or peroxide. If you like, you can rest with the color in your hair overnight by covering it in a plastic cap. Read the packaging to be sure the color is semi-permanent which doesn’t include ammonia or peroxide once wearing it in for an incredibly long time.

2. Use Cold Water For Hair Rinsing

Washing your hair with hot water will break the connection between the hair dye and your hair. It happens by leaving you with no pigment in a short period. While washing your hair, only use cool water.

Furthermore, stop rubbing your hair aggressively hard when it’s time to wash. as this will cause the color to vanish. Rather, use your finger fingers to lightly massage your strands.

3. Use White Vinegar To Raise The PH Level oF Hair Strands

Wash your hair with white vinegar soon after applying your hair dye for lengthy coloration. A vinegar treatment elevates the PH level of your hair and guarantees that the dye will last for as long as it takes.

After shampooing your hair, rinse it in white vinegar. Dip each strand of your hair in enough vinegar. Vinegar makes your hair’s pH levels rise, enabling the color to last more.

4. Don’t Use Shampoo Frequently

Reduce the number of times you wash your hair – not over two times a week, if practicable. As desired, apply dry shampoo to hair roots. When you do wash your hair, use a color-coordinating shampoo like the AVEDA line. These have a lot of pigment in them. So they’ll yield a good color lift in between appointments

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5. Deep Conditioning Help To Sit The Semi-Permanent Hair DYE For Longer

Each time you wash your hair. Conditioner serves to keep the color in your hair. While you’re searching for a new hair conditioner, choose one that’s made for color scheme hair.

6. Mix Your Dye with Your Shampoo and Conditioner

1put 1 tbsp of your hair dye in your conditioner and shampoo. Thus every time you use all these complexes with proteins, you renew your color scheme and resist the gradient of shampooing.

7. Don’t Apply Chlorinated Water

Avoid Chlorinated Water On seeking to prolong the life of your semi-permanent hair dye. Another practice to shun is swimming. The chlorinated water can have an adverse influence on your hair texture, leading it to disappear. If you actually must swim, wear a swimming costume that stops water from entering.

8. Avoid Exposure To Sunlight

Minimize moisturizing machines and excessive sun exposure. Be using a hair serum that safeguards your hair from the sun’s rays. Being out in the sun, consider wearing a hat, scarves, UV-protective hair, and umbrellas. Shouldn’t go sunbathing, relaxing on the beach for long periods, or jogging with your hair uncovered. Hair color will go rapidly if it is exposed to direct sunlight for a longer duration.

9. Stop Hair Washing Frequently After Applying Semi-permanent Hair DYE

You waste color every time you wash your hair. Therefore washing it regularly is bad. Wait at least 3 days after applying your hair dye before washing it. This gives the color time to settle ineffectively. Therefore, to maintain your hair color for long, restrict yourself to washing it one or two times a week, sometimes less.

10. Use Dye Protective Hair Products

For long-lasting dye, your shampoo and conditioner should be sulfate-free and color-safe. You may use dry shampoo sometimes to avoid washing your hair too frequently. Before your next wash, the dry shampoo will allow you to reduce filth and excess sebum.

Mostly Asked Questions

Is it possible to make Demi’s hair color permanent?

These are suitable to be used right away. So the method is non-oxidative, mixing color is usually possible. Demi-permanent colors are a type of color that falls somewhere between permanent and semi-permanent.

Is it possible to make hair dye permanent?

You can keep impure hair dye for further usage. Unfortunately, you can’t do it by mixing hair dye. To brighten, deepen, switch to a different shade, apply permanent hair dye. That hair dye activates by unlocking the hair shaft and infusing chemical pigment into the hair shaft, permanently. You can do it by altering the color content of your mane.

What’s the relationship between semi-permanent hair color and demi-permanent hair color?

The main distinction between semi-permanent and demi-permanent hair color is just how long they stay after regular washes and exposure to sunshine. In comparison to permanent hair color, both procedures are impermanent, with demi-lasting close to 30 washes and semi-lasting usually less than 5 washes.

Final Words

After the post above it is clarified that making semi-permanent hair dye permanent is impossible. However, you can make semi-permanent hair dye long-lasting by following some tricks and tips. Semi-permanent hair dye is a gift for those who like to try out new colors without committing to a long engagement.

This cannot, however, offer similar high durability with permanent hair dyes.

Moreover, if you carefully follow the above guidance or use the best products. You will be able to maintain your pretty hair color scheme for just a way too long!