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.

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.
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.

