How Long Does Permanent Hair Dye Last?

How long does permanent hair dye last? Consider main factors impacting the duration of your hair color and how to protect the hair to help it last longer.

Even permanent hair dye doesn’t stay forever. The time it lasts can vary. Your natural hair type affects how long the color stays. Your hair care habits also make a difference. Where you live can impact the dye’s lasting power too.

In this post of Jen Hair, we will show you the influencing factors that determine the lifespan of permanent hair dye. Then, you will be equipped with practical tips to make your color last longer. Follow us!

How long does permanent hair dye last? The duration of your hair color's longevity depends on several factors (Source: L'Oreal Paris)
How long does permanent hair dye last? The duration of your hair color’s longevity depends on several factors (Source: L’Oreal Paris)

Understanding How Permanent Dye Works

Hair dye doesn’t just sit on your hair like paint. It goes inside each hair. The dye has a special ingredient that opens up your hair, letting the color go deep inside. 

Then your hair closes, trapping the color inside for a long time. This is why permanent dye lasts for months before growing out or fading much. It looks natural because the color is inside the hair, not just coating it. 

The dye uses a helper (usually hydrogen peroxide) to open the hair’s outer layer. This lets the color get deep into each hair. 

When the hair closes again, it keeps the color inside. This makes the dye last a long time and look very natural. The color comes from within the hair, not just the outside.

How Long Does Permanent Hair Dye Last in Your Hair?

Permanent hair dye lasts around 4-8 weeks. It is longer than other types, such as temporary dye that can be washed out easily.

Semi-permanent and demi-permanent dyes together last within 6-8 washes. They only coat hair, unlike permanent dye that goes inside.

Permanent dye penetrates hair deeply. This is why it stays longer than other dye types.

Permanent hair color is known for its extended longevity compared to other types of hair dye. (Source: Formulate)
Permanent hair color is known for its extended longevity compared to other types of hair dye. (Source: Formulate)

How long does permanent hair dye last on bleached hair?

Bleached hair is more porous, holding color better. How long does permanent hair dye last on bleached hair? 

Permanent dye usually lasts longer on bleached hair than on unbleached hair. On average, permanent dye on bleached hair lasts about 6 to 8 weeks before fading. 

However, this can vary based on hair care, dye quality, and color shade. Your hair’s condition after bleaching also affects color longevity. Do regular touch-ups and use color-safe hair products it keep it fresh.

Shielding colored and bleached hair from sun and pool water helps keep the color longer. Taking easy steps can greatly extend the life of your hair color after bleaching.

When you bleach your hair, it becomes more porous, which means it can hold onto color better. (Source: Hair.com)
When you bleach your hair, it becomes more porous, which means it can hold onto color better. (Source: Hair)

How long does permanent hair dye last on grey hair?

Grey hair’s resistance to color absorption affects permanent dye longevity. Typically, dye on grey hair lasts 4-6 weeks before noticeable fading. Results vary based on dye shade, quality, and initial hair condition. 

Use special hair products and avoid heat and sun to keep your color longer. Regular touch-ups help too.

For grey hair, good care keeps the color bright and lasting. This makes covering or enhancing grey hair more successful and enjoyable.

What are Factors That Influence the Hair Dye Fading o

Permanent hair color usually looks great for about 8 weeks. During this time, you have fresh salon look.

But some people’s color fades much faster, sometimes just a couple weeks after dyeing their hair.

Even using two same hair dye, different individuals can get very different results. Some might get longer hair color than others.

There are different reasons leading to this difference. Check out below!

Permanent hair color typically maintains its vibrancy for up to 8 weeks. (Source: Real Simple)
Permanent hair color typically maintains its vibrancy for up to 8 weeks. (Source: Real Simple)

Below are those factor to consider:

Hair Condition

  • Porous Hair

Hair porosity indicates the ability that you hair can absorb and retain moisture. More porous hair has more cuticles. It is more open to allow substances to enter and exit easily. This includes hair dye pigments, which can wash out faster in porous hair.

While all hair has some level of porosity, certain types are naturally more porous:

  • Textured hair (wavy, curly, or coily)
  • Damaged hair

Coloring does not last long on damaged hair. It fades more quickly than healthier hair. Damaged hair has open cuticles to allow the color to escape. It can fade off when you wash or style your hair.

  • Hydrated Hair

Hair that is well hydrated and nourished can retain pigment better. Healthy hair will be stronger for coloring. It allows the cuticles to close and seal in the color more effectively.

  • Damage from Dyeing

Your hair may be harmed if it feels rough and breaks easily after dyeing. Lifted hair scales can let color wash out more quickly. This causes the dye to fade faster than normal.

If you have hair with higher porosity, your hair color fades faster. (Source: Everyday Health)
If you have hair with higher porosity, your hair color fades faster. (Source: Everyday Health)

Water Supply

The minerals in shower water can impact your hair color. Hard water has more minerals, especially calcium and magnesium. It will make the color last shorter on your hair.

As you shower, these minerals build up on your hair and scalp over time. This buildup can cause your color to change unexpectedly. It will look dull, or fade faster than you’d like.

If there is hard water in your home, consider installing a shower filter. This device reduces minerals in your water. As a result, your hair can last longer.

With less mineral exposure, you help your hair color vibrant in longer time. It keeps shiny and fresh-dyed look.

Soft water has a lower concentration of these minerals, while hard water has a higher amount. (Source: Naturally Curly)
Soft water has a lower concentration of these minerals, while hard water has a higher amount. (Source: Naturally Curly)

The Previous Color

Your hair’s existing color, whether natural or from previous dye, influences how well new dye takes and lasts. Dark hair tends to resist lighter shades, often leading to faster fading as the new color struggles to penetrate deeply. 

Meanwhile, some lighte hair tone, including strawberry blonde and platinum, accept new color more easily. It results in longer-lasting results.

The difference is because of the amount of natural pigment in your hair. Lighter hair containing fewer pigments is more receptive for new dye. With less existing color to interfere, the new dye can bond more effectively with each strand.

Therefore, if you have dark hair and choose a lighter shade, the color will fade more quickly. 

However, if your hair is naturally light or has been lightened previously, you’ll likely enjoy better absorption of the new dye and more enduring color. This is why people with lighter hair often find their dye jobs staying vibrant for longer periods compared to those with darker hair attempting lighter shades.

In contrast, darker hair contains stronger and much more concentrated pigments. This means that pale or vibrant dyes struggle to overpower the pigments in black hair.

The previous color of your hair can have an impact when you decide to dye it again. (Source: Chatelaine)
The previous color of your hair can have an impact when you decide to dye it again. (Source: Chatelaine)

The Color You Want

How long does permanent hair dye last? You must consider the color you choose. Some colors tend to fade more quickly than others, depending on the size or number of pigment molecules in the color formulation.

In simple terms, colors with smaller or a greater number of pigment molecules have higher coloring and staying power. In contrast, those with larger or fewer molecules tend to fade faster.

Remember this: darker or neutral colors have the longest staying power. In contrast, lighter or more intense colors tend to fade more quickly. For instance, intense red dye consists of large pigment molecules, which do not penetrate deeply into the hair’s cortex, resulting in faster fading. Similarly, pale shades fade rapidly as they contain fewer pigment molecules.

In contrast, black and brown dyes, with their smaller molecules, fade the slowest. Meanwhile, dark blue and deep purple dyes with more pigment molecules last longer.

When it comes to how long does permanent hair dye last, consider the specific color you choose. (Source: Love Hairstyles)
When it comes to how long does permanent hair dye last, consider the specific color you choose. (Source: Love Hairstyles)

Following Instructions

When using a permanent box hair dye, it’s essential to follow the provided instructions carefully. This means:

  • Taking time to prepare your hair properly
  • Mixing the colors accurately
  • Leaving the dye in for the recommended duration

These instructions are developed by hair color experts who understand the intricacies of the dyeing process. By following their guidance closely, you can achieve optimal results with the hair coloring.

The preparation phase helps your hair accept the dye more effectively. Proper mixing ensures the color develops as intended. And timing is crucial – leaving the dye in too long or not long enough can significantly affect the final result.

Remember, these instructions are your roadmap to successful hair coloring at home. Treat them seriously to make the most of your new hair dye and achieve the look you desire.

By adhering to their guidance, you can ensure the best possible results for your hair dyeing endeavors. (Source: Healthline)
By adhering to their guidance, you can ensure the best possible results for your hair dyeing endeavors. (Source: Healthline)

Aftercare

After dyeing your hair, it is essential to take some steps to make the color last longer.

The secret is taking good care of your hair. The right care routine can really help your color stay vibrant for longer.

Keep reading to learn some helpful tips on how to keep your hair color looking fresh!

The right aftercare routine can significantly extend the lifespan of your color. (Source: Femina.in)
The right aftercare routine can significantly extend the lifespan of your color. (Source: Femina.in)

How Long Does Permanent Hair Dye Last? Tips for Extending its Lifespan

Say no to shampooing

Want your new hair color to stick around? Hold off on washing it for a couple of days after you dye it. This gives the color a chance to really settle into your hair. 

When you wait, the dye gets to work its magic, gripping onto each strand. The result? Your color won’t wash out as fast. It’s a simple trick, but it helps create your fresh, vibrant look that will hang around much longer.

Opt for products that are safe for colored hair

For your freshly dyed locks, there is a wide range of products out there made just for colored hair. It could be everything from shampoo to hairspray. 

Go for a gentle, sulfate-free shampoo and conditioner. These will keep your hair happy and healthy. Also, they’ll help your color stick around longer.

Look for a shield for your color, keeping it bright and beautiful. The key is finding what works for your hair.

Remember, treating your dyed hair right isn’t just about looks. It’s about keeping your hair in good shape too. So give it some love with the right products, and your color will thank you by sticking around longer.

Reduce washing

Do not wash your hair too often. This happens because hair dye can dissolve in water. When you shampoo, the color molecules wash away bit by bit. Even dyes made with oil will slowly come out over time.

If you like to shower every day to stay clean, your hair color less bright after 3 weeks. To help your color last longer, wash your hair less often – maybe once or twice a week.

It is best not to use hot water. Hot water can open up the outer layer of your hair, which lets color escape. Instead, use cold water. Cold water helps keep that outer layer closed, which keeps more color in your hair.

Frequent washing of your hair can contribute to faster fading of the hair color.  (Source: The Today Show)
Frequent washing of your hair can contribute to faster fading of the hair color.  (Source: The Today Show)

Protect your hair from the sun

Sunny days might feel great, but the heat and UV rays are quietly messing with your hair.

Think of your hair like a tiny armored warrior. Each strand has this outer shield called the cuticle. It’s there to protect the inner part of your hair. But leave your hair out in the sun too long, and that shield starts to crack. The heat dries it out, and those UV rays? They’re like little battering rams.

When your hair’s shield gets weak, all sorts of annoying things start happening. You might notice more frizz or split ends.

Minimize using heat styling tools

Just like the sun, heat from hair styling tools can hurt your hair. In fact, it can be even worse – about twice as bad. When you use too much heat from these tools, it can open up the outer layer of your hair. This makes it easier for the color to slip out.

To keep your hair healthier, use the coolest setting to dry your hair. If you need to use a hair straightener or curling iron, put on a heat protection. This creates a shield around your hair.

Similar to the sun, the heat generated by styling tools can be detrimental to your hair. (Source: Healthshots)
Similar to the sun, the heat generated by styling tools can be detrimental to your hair. (Source: Healthshots)

Practice a hair-friendly lifestyle

Taking care of your hair isn’t just about what you put on it. It’s also about your daily habits.

  • Eat foods that are good for your hair. Things with iron, omega-3 fats, and zinc can help keep your hair healthy and looking good.
  • Keep your hair moist from the inside out. Use conditioner, but also drink plenty of water – try for 8-10 glasses each day.
  • Be careful about swimming. Pools with chlorine and even the ocean can dry out your hair and damage it.
  • Try to relax and lower your stress. When you’re very stressed, it can hurt your hair. You might lose more hair or even see it turn gray earlier. Take time to chill out!

Opt for natural hair color options

Choose the shades that closely match your natural hair color will make the color last longer. Additionally, most permanent dyes typically offer a range of natural shades.

You might be interested in bold and vibrant colors. Ensure to follow the tips above to ensure your hair. It helps maintain its stunning appearance for longer.

For long-lasting color, it is advisable to choose shades that closely match your natural hair color. (Source: Cutters Hairdressing)
For long-lasting color, it is advisable to choose shades that closely match your natural hair color. (Source: Cutters Hairdressing)

How Long Does Permanent Hair Dye Last Before It Fades?

On average, permanent hair dye lasts 4 to 6 weeks, After that, it will have noticeable fading occurs.

The fading process is gradual. In addition, the extent of fading can vary from person to person. Some individuals experience noticeable fading after a few weeks. Meanwhile, others retain the color longer.

To make your hair color last as long as possible, you must follow proper aftercare routines. It could be using color-safe and sulfate-free hair care products. More importantly, minimizing exposure to sunlight and chlorine and avoiding excessive heat styling.

Also, it it best to reduce the frequency of hair washing. These practices can help preserve the vibrancy of the color for longer time.

FAQs

Is it possible for permanent hair dye to completely wash out?

No, permanent hair dye doesn’t fully wash out. It goes deep into your hair and changes its color for a long time. The color will fade slowly, but it won’t completely go away unless you use special products to remove it.

Which hair color has the longest-lasting effect?

Black and dark brown colors last the longest. Dark colors generally stay longer than light ones because they go deeper into your hair, making them harder to fade.

However, individual hair type, quality of the dye, and hair care practices can also influence color longevity.

Can permanent hair dye have a damaging effect on your hair?

Permanent hair dye can cause damage to the hair, especially if used incorrectly or excessively. The chemicals in permanent hair dyes, such as ammonia and hydrogen peroxide, can strip the hair of its natural moisture and proteins, leading to dryness, brittleness, and breakage. 

Additionally, frequent dyeing or overlapping of color can further weaken the hair fibers. It is essential to follow the instructions, use hair dye sparingly, and maintain a proper hair care routine to minimize potential damage.

To Conclude

How long does permanent hair dye last? Permanent hair dye typically lasts 4 to 6 weeks before noticeable fading occurs. Factors like brand, hair type, and care routine influence its lifespan. To extend the color’s longevity, use color-safe products, minimize sun and chlorine exposure, reduce heat styling, and wash hair less frequently. With these tips, you can enjoy vibrant, long-lasting hair color that suits your style.