New: Customised Blue Shampoo 💙 Get it as a gift when buying shampoo and conditioner 💙
LULAB Skræddersyet Blue Shampoo – neutraliserer røde og varme toner i brunt hår

How to neutralise red and warm tones in brown hair

by Martin Lund

Do you see red or warm tones in your brown hair? Learn how to neutralise them and achieve a cooler hair colour.

Why does brown hair turn red or warm?

Many people find that their brown hair develops a warm tone over time. It can show up as reddish, golden or yellowish tints, especially if the hair is coloured or lightened.

This is mainly due to two things:

  • The hair's natural melanin (warm pigments)

  • Old colour pigments that gradually come through

Even if you start with a cool brown colour, these undertones will often appear over time.

What can you do about warm tones in brown hair?

If you want cooler brown hair, it is all about working with the colour wheel.

Warm tones (red/orange/yellow) are neutralised by cool pigments, especially blue.

Why blue shampoo works

A blue shampoo is developed to:

  • Neutralise red and orange tones
  • Restore balance in the hair colour
  • Prolong a cool brown shade

With regular use, you can keep your hair cooler and more even in colour.

Combine care and colour correction

The most important thing is that your shampoo not only corrects the colour but also cares for your hair.

A customised formula with pigment can:

  • Protect the hair
  • Add shine and softness
  • Work actively with the colour

Why we launched blue hair care

If your brown hair turns warm in tone, it is completely natural.
But with a blue shampoo, you can easily restore a cooler and more balanced shade.

Read more about our Customised Blue Shampoo here

Previous Post Next Post

Related Posts

Køligt brunt hår uden røde toner med LULAB Blue Shampoo

How to get cool brown hair (without red tones)

A guide to how you achieve and maintain cool brown hair without red tones. The dream of cool brown hair Cool brown hair often has a deeper, more elegant and natural tone.But it requires maintenance. Why does hair lose its cool tone? Over time, several things happen: Colour fades Warm undertones come through The hair is affected by sun, water and styling This gradually makes the hair warmer in tone. 3 steps to a cooler result 1. Use colour-correcting products Blue shampoo is the most effective tool for neutralising warm tones. 2. Choose gentle hair care Sulfate-free, caring products help preserve the colour for longer. 3. Maintain your hair colour Regular care is the key to keeping the tone cool. The modern solution: customised hair care with added blue pigment By combining personalised hair care with pigment, you can: Adapt to your hair's needs Achieve healthy hair Work actively with your hair colour So, what does this mean? Cool brown hair is not just about colour, but about maintenance. With the right products and routines, you can keep your hair free from red and warm tones and preserve a beautiful, balanced shade. Try our Customised Blue Shampoo here

Learn more
LULAB Skræddersyet Purple Shampoo mod gule toner i håret

How to avoid yellow tones in your hair

Brassy Hair? How to Remove Warm Tones with Purple Shampoo Many people experience the same thing after a visit to the hairdresser: Their hair is beautifully blonde or light, but after a few weeks, the familiar yellow undertones appear. This can happen whether the hair is bleached, coloured, or naturally grey, and it's due to entirely normal processes in the hair shaft. Here you can learn more about why hair turns yellow after bleaching, and how purple shampoo (also called silver shampoo) can be a simple tool to maintain a cooler tone in your hair between colourings. Why can blonde hair get a yellow tint? Bleached, grey, and naturally blonde hair often turns yellow (or brassy) over time due to a combination of chemical and environmental factors. When you bleach your hair, you remove the natural pigment melanin, but there are often underlying warm tones (like yellow or orange from pheomelanin) that are not completely removed. These tones become more visible as the colour fades. Here are the primary causes: Oxidation and sunlight: Imagine your hair as a white T-shirt. When you go out in the sun, it slowly starts to fade and get a yellowish tint. The same happens to your hair when UV rays and oxygen "oxidise" the last pigments in the hair shafts.Fading of toners or colour: The toner often applied after bleaching to neutralise yellow tones doesn't last forever. Over time, it washes out, revealing the natural warm undertones.Water and minerals: Think of your hair as a sponge. When you wash it in hard water with minerals like iron or copper, it's a bit like pouring tea or coffee on a white tablecloth – it slowly sets in and gives a yellowish tint.Incomplete bleaching: If the bleaching doesn't lift the hair sufficiently (e.g., due to low-quality bleach or incorrect developer), pigments are left behind that oxidise and turn yellow.Other factors like pollution, product residue, or frequent washing can also contribute. To counteract this, you can use purple shampoo (toner) or protect your hair from sun and minerals. Tips for prevention: Use purple shampoo as needed when you need to neutralise yellow tones. Protect from the sun with a hat or UV protection in your hair products. Install a water filter to reduce minerals. Choose professional products for better bleaching Grey hair and yellowish tint Grey hair is particularly sensitive to environmental influences because it lacks the natural pigments that protect and keep the colour even. Many people find that even a beautiful silver sheen can develop a yellowish tint over time. Here, a shampoo for grey/light hair that contains violet pigments can help refresh the tone, making the hair appear clearer and more uniform. What does silver shampoo do? Silver shampoo and purple shampoo work based on colour theory: Purple and violet are complementary colours to yellow and orange. When you wash your hair with a shampoo containing violet pigments, a small amount of colour is deposited, neutralising the warm tones. The result is a cooler shade, often similar to the one you had right after your salon visit. How to use silver shampoo? For the best results, use purple shampoo correctly: Wet your hair thoroughly. Distribute the shampoo evenly from root to tip. Then wash your hair. Our Purple shampoo does not require it to sit in the hair for an extended period. Rinse thoroughly. Preferably use a moisturising conditioner afterwards. TIP: Overuse can give the hair a slight purple tint, so use as needed. Can yellow hair after bleaching be avoided? Completely avoiding yellow hair can be difficult, especially if the hair is bleached or coloured light. Therefore, many use a combination of: Purple shampoo to neutralise yellowish tint UV-protective products to minimise sun exposure Gentle washing with sulfate-free shampoo Moisture and nourishment to strengthen hair after bleaching If you have damaged hair after bleaching, it can be beneficial to tailor your purple shampoo so that the hair receives both care, moisture, and colour correction through the purple pigments. Shampoo for grey hair: what should you choose? When choosing the best shampoo for grey hair, it's a good idea to consider both colour and care. Both grey and bleached hair often need extra moisture and protection so that it doesn't become dull or dry. A good shampoo for grey hair therefore often combines: Violet pigments that remove yellow tones Moisturising ingredients Gentle cleansing without sulfates and silicones When should you consider toning colour for yellow hair? If the hair is very yellow or orange, a toning colour for yellow hair can be a solution. A toner provides more intense colour correction than shampoo alone, but also requires more maintenance. Many therefore use purple shampoo as an easy way to prolong the effect of a toner. Grey, blonde, or bleached hair, remember this: Whether you have bleached hair, grey hair, or natural light highlights, sun and hot styling tools are among the biggest culprits when hair turns yellow. A simple routine with silver shampoo when the hair becomes too warm or yellow, combined with gentle care, is often enough to keep the colour fresh. If you want to know more about hair care or find products that suit you, you can always take a hair test and learn more about what your hair needs.

Learn more

Postpartum hair loss: why it happens and what you can do

Postpartum hair loss is normal and temporary. Learn why it happens, when it stops, and how to care for your hair and scalp in the meantime.

Learn more