What Causes Grey Hair? Plus 7 More Need-to-Knows
‘What causes grey hair?’ It’s one of the most common questions we hear from clients who are trying to keep silver strays at bay, and can’t figure out where they came from. The fact is, there are a number of reasons we get grey hair – from stress to plain and simple genetics. Here, we reveal the full details, plus answers to seven more questions you might have about grey locks...
1. First, What is Grey Hair?
The answer to this is less obvious than you think. Grey hair isn’t merely a hair that goes grey; it’s actually a strand of hair that loses its pigment entirely. So, while it may look silvery, each ‘grey’ hair is really white or pigment-free. It may take on a grey-ish appearance when interspersed with other colours.
2. Why Does Hair Go Grey?
Hair goes grey – or, rather, loses its pigment – when the cells responsible for colour, called melanin, stop being produced. There’s a host of possible reasons why this might happen, with age being the obvious one. It’s believed that stress, as well as nutritional, hormonal and genetic factors can all play a role, too.
3. Is Grey Hair Coarser Than Pigmented Hair?
Sometimes, grey hair can feel coarse or wiry. This isn’t a result of the hair losing pigment, but rather another natural process that takes place as we get older. Over time, your hair follicles produce less oil, which can cause this coarser texture. For clients who complain about wiry hair, suggest a hydrating shampoo and a deeply nourishing treatment. We love the Oil Reflections Luminous Reveal Shampoo and Luminous Reboost Mask; a sumptuous duo we’re dubbing a match made in moisture-boosting heaven.
4. When Does Hair Go Grey?
The rate at which hair turns grey varies from one person to the next. Some may notice silvery strays in their twenties, while others may spot their first greys in their forties. This is true for every hair colour, whether it’s black, brown, blonde or red. However, those with darker hair may notice their greys sooner than blondes, as the white strands stand out more.
Image Credit: @house_of_balayage
5. What Happens If You Use Purple Shampoo On Grey Hair?
External aggressors, such as chlorine or pollution, can cause grey hair to turn yellow over time. However, clients with yellowing greys can use a purple shampoo to neutralize that warmth. Suggest they turn to the INVIGO Cool Blonde Colour Refreshing Shampoo once a week to cool down greys. If they prefer a nourishing treatment, the Color Fresh Mask in Pearl Blonde will help to balance yellow tones, too.
6. Can Grey Hair Be Coloured?
Yes. Although some greys can be resistant to colour, there are a number of options for clients who hope to hide their silver strays. Every grey coverage service begins with choosing the right colour product, so talk your client through the options. Here are our ‘goodbye grey’ go-tos…
Demi-Permanent or Semi-Permanent Colour
For clients who prefer a demi- or semi-permanent hair colour, you can achieve anywhere between 30% and 70% grey coverage. Color Fresh gives you up to 30% with a subtle, true-to-tone tint, while Color Touch offers up to 70% with a vibrant and intense finish to boot. Choose one of these hues for a softer demarcation line when roots grow out.
Permanent Hair Colour
This is the colour for clients who hope to hide every single grey, offering up to 100% coverage in a range of shades. Choose Illumina Color for a sheer, light-reflective result or Koleston Perfect for a pure, healthy-looking finish. Then, mix the chosen colour 1:1 with 6% Welloxon Perfect Developer for maximum coverage.
High Lift Shades and Hair Lightener
You can take a client’s hair from grey to blonde with a hair lightener or high-lift colour. Choose your favourite Blondor product for highlights, Blondor Freelights for balayage or one of Koleston’s Special Blondes for lightener and toner in one. Mix the latter with Welloxon Perfect 12% for up to five levels of lift or 9% for up to three levels.
Image Credit: @harklippetimora
7. What Techniques Should I Use to Colour Grey Hair?
There are three key Wella services we use to keep grey hair under wraps. Choose from a simple Root Touch Up, an Express Touch Up or Grey Blending. For minimal strays, you can also cover grey hair with highlights, applying them on or beside silver strands to gently blend them in and make them less noticeable.
Root Touch Up
The traditional, full-head root touch up sees colour applied to regrowth with a tint brush. Do this with a permanent hair colour shade of Illumina Color, Koleston Perfect or KP Resistant Cover. Go for a hue that either matches the colour throughout the mid-lengths, or pick one that’s slightly darker to create an oh-so-delicate root shadow.
Partial Root Touch Up
Fast track grey coverage for clients who are tight on time or need a quick pick-me-up. You use the same colour products as a normal Root Touch Up, but only apply to the parting and hairline. You can speed things up further by using heat to reduce the development time. A Climazon will take the process down from 40 minutes to just 25.
Grey Blending
Soft, subtle and seamless; this service is designed to touch up minimal regrowth, delivering just a hint of a tint to blend away stray greys. Quite simply, you use demi-permanent Color Touch or Color Touch Plus to refresh locks, whether by focusing your client’s chosen shade on the roots or sweeping through to the tips.
8. Tell Me More About Grey Coverage
For more hairspiration, discover our full collection of grey hair guides. Soon, you’ll find that there’s a product, shade and technique to suit every one of your clients:
