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What is purple shampoo used for in hair?

Have you ever wondered what purple shampoo is for and if it's really necessary in your hair care routine? This increasingly popular product is a true ally for maintaining radiant hair color, especially if you have blonde, highlighted, gray, or white hair.
In this Karseell article, you'll discover what purple shampoo does, how to use it correctly, and what the best purple shampoo is for your hair type. Keep reading!
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What is purple shampoo?

Purple shampoo, also known as violet shampoo, is a hair care product formulated with violet pigments that neutralize unwanted yellow and brassy tones. This is because purple is the opposite of yellow on the color wheel, so it visually cancels out those warm undertones that appear over time in light hair.
This type of shampoo is not a dye, so it does not lighten or darken hair, but it does tone and prolong the original color, keeping it brighter and fresher for longer.

Purple shampoo: what is it for?

If you're wondering what purple shampoo is for, the truth is that, as we mentioned, its formula is highly effective in neutralizing unwanted tones that often arise from hair oxidation, especially in hair that is:
  • Blonde (natural or dyed)
  • Highlighted
  • Gray or silver
  • White

 

Factors such as sun exposure, chlorine, frequent use of flat irons or blow dryers, and even pollution, alter hair pigmentation and lead to the appearance of yellowish, orangey, or greenish tones. This is where purple shampoo comes in, restoring luminosity and neutralizing those unwanted tones.

Blue or purple shampoo?

When it comes to maintaining the perfect color in your dyed or natural hair, choosing between blue or purple shampoo can make all the difference. Although both are designed to neutralize unwanted tones, they do not act on the same undertones or on the same hair types, so it is essential to know which one is best for your base color and the result you want to achieve.
Therefore, the choice between blue or purple shampoo will depend on your hair tone:
  • Purple shampoo: Ideal for blonde, gray, white, or highlighted hair. Eliminates yellow undertones.
  • Blue shampoo: Recommended for light brown hair or balayage. Neutralizes orange or brassy tones.

 

If you have doubts, you can alternate them depending on how your hair color develops.

How to use purple shampoo

Knowing how to use purple shampoo correctly is key to getting good results and avoiding over-pigmenting your hair.
Karseell recommends following these steps:
  1. Apply to damp hair, after removing excess water.
  2. Wear gloves to avoid staining your hands with the pigment.
  3. Gently massage from the scalp to the ends.
  4. Leave on for 1 to 5 minutes depending on the desired intensity (always read the product instructions).
  5. Rinse with plenty of water.
  6. Apply your usual conditioner or mask to restore hydration.

 

It is important not to leave it on longer than indicated, as you could end up with violet reflections in your hair, especially in very light or porous areas.

Recommended frequency of use

Meanwhile, the ideal frequency of use for purple shampoo will depend on the hair type and color condition, but generally:
  • 1 to 2 times a week is enough to maintain the tone.
  • For very oxidized hair, it can be increased to 3 times a week, alternating with a gentle shampoo.

 

In any case, daily use is not recommended, as it could dry out the hair if not accompanied by nourishing products.

What is the best purple shampoo?

The best purple shampoo will be one that suits your hair's specific needs and has a gentle formula that respects its natural balance.
It is advisable to opt for sulfate and paraben-free products, as these components can be aggressive and dry out the hair fiber. Additionally, a good choice will include antioxidant active ingredients such as purple rice extract or baobab proteins, which help protect and revitalize hair.
Finally, a purple shampoo enriched with natural oils like jojoba or argan will provide nourishment, softness, and shine, promoting a healthier and longer-lasting result.

Can purple shampoo damage your hair?

Purple shampoo does not damage hair if used properly. However, you should keep in mind:
  • Do not overuse for extended periods.
  • Avoid products with harsh ingredients.
  • Combine it with a nourishing care routine: conditioners, masks, and heat protectants.

 

It doesn't matter if you're a natural blonde, have highlights, proudly sport gray hair, or love platinum gray: purple shampoo is undoubtedly your best ally for radiant hair without yellowish tones. Try it now!
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