Get the grey coverage you’ve been dreaming of.

Going grey is a part of life and some women embrace their silver…but you can also choose to live life in full color and cover those greys. In this article, learn about what causes grey hair, how to prevent it, and how to color it. We’ve got plenty of expert tips for you including the best color to dye hair to cover grey.

article-duration
4 min read
L'Oréal Professionnel Team
10/04/2026

What causes grey hair?

Let’s begin by saying that going grey is natural. Everyone’s hair turns grey (or white) at some point. For many, this process begins in your 20s or 30s, for some, it can happen much later. Hair begins to turn grey when hair follicles stop producing melanin, which is what gives your hair its color. Many factors come together to determine when your hair will begin turning grey, including family history, health conditions, and lifestyle.

Does stress cause grey hair?

In a word, yes. Stress can speed up visible signs of ageing, like going grey. Stress causes the release of a hormone called norepinephrine which can cause the melanin-producing cells to move out of your hair follicles, which, researchers say, plays into your hair turning grey.

How do you prevent grey hair?

We can’t quite prevent hair from going grey, in the same way that we can’t stop time. There aren’t any medical treatments that bring the color back to your hair. That said, if an underlying health condition, like a vitamin deficiency, is responsible for your changing hair color, that’s something a doctor or dermatologist might be able to help you with. Remember, going grey is totally normal. If you’re looking for best color to dye hair to cover grey, however, we’ve got you covered below.

There are also some lifestyle changes you can adopt to help slow the greying process. Dermatologists recommend maintaining a healthy lifestyle, which includes having a balanced diet and getting adequate sleep. They also recommend not smoking, protecting your hair and skin from the sun, and trying to manage stress.

Expert tips to cover grey hair.

Now you’ve got options, but where do you begin? You want a professional grade hair color so you can cover those greys with ease and precision. When it comes to the best color to dye hair to cover grey, Majirel by L’Oréal Professionnel achieves even, rich color from root to tip with up to 100% grey coverage. This iconic caring formula dates back to 1978, for perfect coverage from root to tip. It provides a pleasant coloring experience in salon without compromising on long-lasting results. In a new vegan formula, its new caring-agent complex provides 3x more care, leaving hair noticeably smoother and more conditioned. The improved creamy texture facilitates seamless, flawless application.

For grey coverage, also consider iNOA, the most innovative permanent color powered by oil and created in 2009. It’s ammonia free and enables a totally luxurious in-salon experience.

Now, if you don’t want to have grey hair, you don’t have to.

Full coverage vs. French Blending™

There’s a range of options when it comes to your desired level of grey coverage. You can go full coverage, with a product like Majirel or iNOA, as we’ve discussed above. These are professional grade products that can help you achieve even, rich color from root to tip for up to 100% grey coverage. But if you’re looking for more of a blended approach, there’s:

French BlendingTM

This is a new professional way to approach grey coverage. The aim is to eliminate the harsh regrowth line for a graceful grow out and deliver multidimensional color at the same time. Innovative, unique color recipes paired with Vertical Weaving Technology ensure an unrivaled aesthetic fade that lasts. It’s designed to match any desired level of grey coverage.

How to cover grey hair?

For those of you looking to cover your greys, lucky for you we live in a world with plenty of options, and they can even be fairly low maintenance. Here are some of our stylist-vetted ideas when it comes to the best color to dye hair to cover grey.

Brilliant brown

You can cover grey hair with a brunette look with a mix of undertones for some multi-dimensional color that will help camouflage the regrowth of your greys.

Get inspired for your future #brunette hair color experience.​

Ash brown

 

A lighter ash brown might not provide full, robust coverage, but it can be a light way to mask the grey.

 

Cool blonde

For those with lighter hair (or those who have already gone full grey), a cool blonde shade is the way to go, blending effortlessly with your grey.

Conclusion: All the ways to cover your greys.

 

Whether you’re looking for full grey coverage or a more blended approach, talk to your salon professional. From traditional coverage to French BlendingTM, there’s a spectrum of options for your optimal level of coverage.

 

Your questions & our answers about the best color to dye hair to cover gray. What causes gray hair?

  • Does stress cause gray hair?

    Yes. Stress can speed up visible signs of ageing, like going gray.

  • How do you prevent gray hair?

    You can’t quite prevent going gray, but there are some lifestyle recommendations that may help slow the process.

  • What is the best color to dye hair to cover gray?

    Some of the best colors to for full gray hair coverage include: brilliant brown, ash brown, or cool blonde. For a gray blending approach, talk to your stylist about French BlendingTM.

Get inspired for your future hair color experience.​

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