Purple shampoo is a staple in many blonde and silver-haired individuals’ routines, prized for its ability to neutralize unwanted yellow or brassy tones. But what happens when you introduce this toning powerhouse to already vibrant purple hair? The answer, as you might suspect, is multifaceted and depends on several factors. Let’s delve into the world of purple shampoo and its interaction with purple hair, exploring the potential outcomes, the science behind the process, and how to achieve your desired purple hair goals.
Understanding Purple Shampoo: The Color Wheel Connection
To comprehend the effect of purple shampoo on purple hair, we must first understand its primary function. Purple shampoo contains violet pigments that are specifically designed to counteract yellow tones. This is based on the principles of color theory, where purple and yellow sit opposite each other on the color wheel. When these opposing colors are combined, they neutralize each other, resulting in a more balanced and cooler tone. This is why it’s a savior for blondes who struggle with brassiness.
The concentration of purple pigment varies between different brands and formulations. Some shampoos are intensely pigmented, while others offer a more subtle toning effect. This concentration plays a crucial role in determining the outcome when used on purple hair.
Potential Outcomes: A Spectrum of Possibilities
Applying purple shampoo to purple hair doesn’t necessarily lead to disaster, but it’s crucial to be aware of the potential consequences. The results can range from a subtle refresh to a significant shift in tone, all depending on the starting shade of your purple hair and the intensity of the shampoo.
Intensifying and Deepening the Purple
In some cases, using purple shampoo on purple hair can actually enhance the existing color. This is more likely to happen if your purple hair is a lighter shade, such as lavender or pastel purple. The purple pigments in the shampoo can deposit onto the hair shaft, adding depth and richness to the existing color.
This outcome is often desirable for those who want to maintain or even amplify their current purple shade. It’s a way to keep the color vibrant and prevent it from fading prematurely. However, it’s essential to use a less pigmented purple shampoo or dilute it with regular shampoo to avoid over-toning.
Shifting the Tone Towards Blue or Violet
If your purple hair has warmer undertones, such as red or pink, using purple shampoo can shift the tone towards a cooler, more blue-toned purple or violet. The purple shampoo will neutralize some of the warmth, resulting in a more cool-toned hue.
This tonal shift can be beneficial if you’re aiming for a specific shade of purple. For example, if your purple hair is leaning towards magenta, purple shampoo can help bring it back to a truer, more blue-based purple.
Dulling the Color and Creating a Muddy Appearance
One of the less desirable outcomes of using purple shampoo on purple hair is the potential for dulling the color and creating a muddy appearance. This is more likely to occur if your purple hair is already a dark or muted shade. Adding more purple pigment can overload the hair, resulting in a less vibrant and less defined color.
This muddy effect can be particularly noticeable if the purple shampoo is left on for too long or used too frequently. The excess pigment can build up on the hair shaft, creating a dull and lifeless appearance.
Uneven Toning and Patchiness
Applying purple shampoo unevenly can lead to uneven toning and patchiness in your purple hair. This is especially true if you have highlights or different shades of purple throughout your hair. The purple shampoo may deposit more heavily on some areas than others, resulting in a splotchy or uneven color.
To avoid this, it’s crucial to apply the purple shampoo evenly and thoroughly, ensuring that all strands are coated. It’s also helpful to massage the shampoo into the hair to ensure even distribution.
No Noticeable Effect
In some cases, using purple shampoo on purple hair may have no noticeable effect at all. This is more likely to happen if your purple hair is already a very cool-toned shade or if the purple shampoo is not very pigmented. If your hair doesn’t have warm tones to neutralize, the purple shampoo won’t have much to do.
Factors Influencing the Outcome
Several factors influence the outcome of using purple shampoo on purple hair. Understanding these factors can help you predict and control the results.
The Shade of Your Purple Hair
The starting shade of your purple hair is a primary determinant of the outcome. Lighter shades of purple, such as lavender or pastel purple, are more susceptible to being intensified or deepened by purple shampoo. Darker shades of purple are more likely to become dull or muddy.
The undertones in your purple hair also play a role. Warm-toned purples, such as those with red or pink undertones, are more likely to shift towards cooler tones when treated with purple shampoo.
The Pigment Intensity of the Purple Shampoo
The pigment intensity of the purple shampoo is another critical factor. Highly pigmented shampoos will have a more pronounced effect than less pigmented ones. If you’re unsure about the intensity of a particular shampoo, it’s best to start with a small amount and gradually increase it as needed.
Some purple shampoos are specifically designed for toning blonde hair, while others are formulated for maintaining vibrant purple or other fashion colors. Choose a shampoo that is appropriate for your specific needs.
Application Technique
The way you apply the purple shampoo can also affect the outcome. Applying the shampoo evenly and thoroughly is essential to prevent uneven toning and patchiness. It’s also important to massage the shampoo into the hair to ensure even distribution.
The amount of time you leave the shampoo on your hair will also influence the results. Leaving it on for too long can lead to over-toning, while not leaving it on long enough may not produce any noticeable effect.
Hair Porosity
Hair porosity refers to the hair’s ability to absorb and retain moisture. High porosity hair absorbs moisture quickly but also loses it quickly, while low porosity hair is more resistant to absorbing moisture. Hair porosity can affect how purple shampoo interacts with your purple hair.
High porosity hair may absorb the purple pigments more quickly, potentially leading to over-toning. Low porosity hair may not absorb the pigments as readily, requiring longer processing times.
How to Use Purple Shampoo on Purple Hair Effectively
If you choose to use purple shampoo on your purple hair, it’s essential to do so effectively to achieve your desired results. Here are some tips to help you get the most out of your purple shampoo:
Test a Small Section First
Before applying purple shampoo to your entire head of hair, it’s always a good idea to test it on a small, inconspicuous section first. This will allow you to see how the shampoo affects your hair color and adjust the application accordingly.
Choose a section of hair that is hidden underneath the rest of your hair, such as at the nape of your neck. Apply a small amount of purple shampoo to the section, leave it on for the recommended amount of time, and then rinse it out. Examine the section to see how the color has changed.
Dilute the Shampoo
To reduce the intensity of the purple shampoo, you can dilute it with regular shampoo. This is especially helpful if you have light purple hair or are concerned about over-toning.
Mix a small amount of purple shampoo with a larger amount of regular shampoo in your hand. The ratio of purple shampoo to regular shampoo will depend on the desired level of toning. Start with a small amount of purple shampoo and gradually increase it until you reach the desired concentration.
Apply Evenly and Thoroughly
To prevent uneven toning and patchiness, it’s essential to apply the purple shampoo evenly and thoroughly. Make sure that all strands of hair are coated with the shampoo, from root to tip.
Start by applying the shampoo to the roots of your hair, where the color is typically the most faded. Then, work the shampoo through the rest of your hair, ensuring that all strands are coated. Massage the shampoo into the hair to ensure even distribution.
Adjust Processing Time
The amount of time you leave the purple shampoo on your hair will affect the results. Leaving it on for too long can lead to over-toning, while not leaving it on long enough may not produce any noticeable effect.
Start by leaving the shampoo on for the recommended amount of time on the bottle. If you don’t see any noticeable effect, you can gradually increase the processing time until you achieve your desired results. However, be careful not to leave the shampoo on for too long, as this can lead to over-toning.
Monitor the Color
While the shampoo is processing, monitor the color of your hair closely. This will help you determine when to rinse out the shampoo.
Check the color of your hair every few minutes. If you start to see the color shift towards your desired shade, rinse out the shampoo immediately. If you don’t see any noticeable change after the recommended processing time, you can leave the shampoo on for a few more minutes.
Rinse Thoroughly
After processing, rinse your hair thoroughly with cool water. Make sure that all of the shampoo is removed from your hair.
Any remaining shampoo can continue to deposit pigment onto your hair, leading to over-toning. Rinse until the water runs clear.
Follow Up with a Moisturizing Conditioner
Purple shampoo can be drying to the hair, so it’s essential to follow up with a moisturizing conditioner. This will help to replenish moisture and prevent your hair from becoming dry and brittle.
Apply a generous amount of conditioner to your hair, focusing on the ends. Leave the conditioner on for a few minutes, then rinse it out thoroughly.
Alternative Ways to Maintain Purple Hair Color
While purple shampoo can be a useful tool for maintaining purple hair color, it’s not the only option. There are several alternative ways to keep your purple hair looking vibrant and fresh.
Use Color-Depositing Conditioner
Color-depositing conditioner is a great way to add pigment back into your hair without the drying effects of shampoo. These conditioners come in a variety of shades, including purple, and can help to maintain the vibrancy of your hair color.
Use a color-depositing conditioner in place of your regular conditioner once or twice a week. Apply the conditioner to your hair, leave it on for a few minutes, and then rinse it out.
Wash Your Hair Less Frequently
Washing your hair less frequently can help to prevent the color from fading. Every time you wash your hair, some of the dye molecules are washed away, leading to color fade.
Try to wash your hair only when it’s absolutely necessary. Use dry shampoo in between washes to absorb excess oil and keep your hair looking fresh.
Use Sulfate-Free Shampoo
Sulfate-free shampoos are gentler on the hair than traditional shampoos that contain sulfates. Sulfates can strip the hair of its natural oils, leading to dryness and color fade.
Switch to a sulfate-free shampoo to help preserve your purple hair color. These shampoos are readily available at most drugstores and beauty supply stores.
Protect Your Hair from the Sun
Sun exposure can cause hair color to fade. The sun’s rays can break down the dye molecules in your hair, leading to a dull and faded color.
Protect your hair from the sun by wearing a hat or scarf when you’re outdoors. You can also use hair products that contain UV filters.
Avoid Heat Styling
Heat styling tools, such as hair dryers, curling irons, and straighteners, can damage the hair and cause color to fade. The heat can cause the dye molecules to break down, leading to a dull and faded color.
Avoid using heat styling tools as much as possible. If you must use them, use a heat protectant spray to help shield your hair from the heat.
The Bottom Line: Experiment with Caution
Using purple shampoo on purple hair is not inherently bad, but it requires careful consideration and experimentation. The outcome depends on the shade of your hair, the intensity of the shampoo, and your application technique. Start with a strand test, dilute the shampoo if necessary, and monitor the color closely to achieve your desired results. There are also alternatives you can use to maintain purple hair. By understanding the potential effects and taking precautions, you can effectively use purple shampoo to enhance and maintain your vibrant purple locks.
Will purple shampoo make my purple hair brighter?
It depends on the shade and condition of your purple hair. If your purple is a vibrant, freshly dyed shade, using purple shampoo might initially enhance the color, making it appear more intense. However, frequent use can eventually lead to a dulling effect as the purple pigments in the shampoo accumulate and potentially shift the tone towards a more ashy or muddy hue, especially on lighter purple shades.
For pastel or faded purple hair, purple shampoo is more likely to help maintain the color and prevent it from turning brassy or yellow. The purple pigments in the shampoo will neutralize any unwanted yellow tones, keeping your purple looking fresh. It’s crucial to monitor how your hair reacts and adjust the frequency of use accordingly to avoid over-toning.
Can purple shampoo damage purple hair?
Purple shampoo itself is not inherently damaging to hair, but overuse can lead to dryness. Many purple shampoos contain sulfates, which can strip the hair of its natural oils, especially if your purple hair has already been processed. This can leave your hair feeling brittle, dry, and more prone to breakage.
To mitigate potential damage, look for sulfate-free purple shampoos or use a deep conditioner regularly after using purple shampoo. Additionally, consider reducing the frequency of use. Focus the shampoo on areas prone to brassiness rather than applying it all over, which can also reduce the risk of dryness.
How often should I use purple shampoo on purple hair?
The ideal frequency of using purple shampoo on purple hair depends on several factors, including the intensity of your purple color, your hair’s porosity, and how often you wash your hair. Generally, using it once a week is a good starting point. Observe how your hair responds and adjust accordingly.
If your purple hair is very vibrant and you want to maintain the color’s intensity, you may only need to use purple shampoo every other week or less. If your purple is a lighter shade or tends to fade quickly, you might need to use it more frequently, perhaps twice a week. Monitoring your hair’s color and condition is key to finding the right balance.
Will purple shampoo cover up my roots if they are a different color?
Purple shampoo is not designed to cover up roots that are a different color than your purple hair. It primarily works to tone and neutralize brassy or yellow tones within the existing purple color. While it might slightly blend very subtle root growth if your roots are a light blonde or a very pale shade, it won’t effectively conceal darker roots or roots that are a significantly different color.
For covering up roots, you’ll need a dedicated root touch-up product or hair dye that matches your purple hair color. These products contain pigments specifically formulated to cover the existing color and provide more substantial coverage than purple shampoo can offer. Consider a semi-permanent dye for a less permanent root touch-up.
What happens if I leave purple shampoo on for too long?
Leaving purple shampoo on your hair for an extended period can lead to over-toning, resulting in a lavender or even a grayish-purple hue, particularly on lighter shades of purple. The pigments in the shampoo will have more time to deposit onto the hair, leading to an uneven or overly cool-toned result. This can also lead to a duller appearance if the hair absorbs too much pigment.
If you accidentally leave purple shampoo on for too long and experience over-toning, don’t panic. You can usually correct the color by washing your hair with a clarifying shampoo a few times to remove the excess pigment. Deep conditioning treatments can also help to restore the hair’s natural balance and shine. Avoid using purple shampoo again until the unwanted tones have faded.
What’s the difference between purple shampoo and blue shampoo for purple hair?
Purple shampoo is formulated to neutralize yellow tones, which often emerge in blonde and light purple hair as it fades. This helps maintain the cool, vibrant purple color by canceling out brassiness. Blue shampoo, on the other hand, is designed to neutralize orange tones.
Therefore, blue shampoo is typically not the right choice for purple hair unless your purple shade has started to develop unwanted orange hues due to the underlying color or fading. If your purple has turned brassy, stick to purple shampoo. If it has taken on a warmer, orange tinge, then a blue shampoo might be considered to correct the color. Careful observation is key to making the right choice.
Can I use purple shampoo on my natural hair color if I have purple highlights?
If you have purple highlights in your natural hair color, using purple shampoo can help to maintain the vibrancy and tone of your highlights, preventing them from turning brassy or yellow. It’s important to focus the shampoo primarily on the highlighted areas, rather than saturating your entire head, especially if your natural hair is dark.
Applying purple shampoo all over your natural hair, particularly if it is a darker shade, could lead to subtle color changes, potentially making it appear ashy or dull over time. It’s best to use a regular shampoo for your natural hair and reserve the purple shampoo specifically for the highlighted areas to keep them looking their best without affecting the rest of your hair.