L'Oréal Colorista Spray Grey Hair Colour, 75 ml (Pack of 1)

Product Information

Many will jump to disguise grey as soon as it makes itself known, but Wood recommends discussing a plan of action with your colourist instead. “It can be a good idea to introduce some kind of highlights or balayage to help break down the demarcation, where the line of grey meets the coloured hair,” he explains. Hair chalk is great: because of its opacity, it typically shows up on every hair color. To use, simply wet your hair, separate it into sections, then run the chalk down your strands. It lasts 2-4 shampoos. The GH Beauty Lab evaluates root touch-up products both in the Lab using technical instruments and on consumer or expert testers. Temporary root touch-up products are assessed by testers on factors including ease of application, color coverage (including gray) and blending, transferring and staining, flaking, lasting power and ease of removal.

If your mind jumps to a dreary, dishwater color when you think of gray hair, it's time to reconsider going gray. Attaining an enviable shade of chic shimmery platinum, smoky gunmetal or stylish silvery blue might be just a bottle of hair dye away! Permanent color fully covers regrowth and grays and also has the ability to lift your natural hair color. It lasts four to six weeks. Root touch-ups have come a long way since older formulas that could look cakey, feel crusty or cover only a small area," Aral says. "The modern formulas look and feel more natural." Here, GH Beauty Lab and hair color pro guidelines for finding your ideal match: Sprays and powders are best for camouflaging large areas of regrowth and the scalp, as they can deliver high pigment load with a single application, Aral says. Root touch-ups are a cost-effective way to help seamlessly blend your roots into the rest of your hair. "These products, in formulas like sprays, powders, creams and dyes, are applied directly to roots and act as hair color extenders," says Good Housekeeping Institute Beauty, Health & Sustainability Lab Senior Chemist Danusia Wnek. Temporary root touch-ups "can be applied in a moment’s notice, and are often compact enough for a purse or bag," she says. There are also permanent, semi-permanent and demi-permanent root touch-up products that consist of hair dye created to be applied specifically to roots.Hair texture can, indeed, change once you have gone gray," says Dr. Francesca Fusco, a dermatologist at Wexler Dermatology in New York City. "Of course, other things will influence it as well. For example, chemical treatments, overuse of heating tools like blow-dryers and flat irons, dyes, and bleaches — and a very oily scalp which can be seen in dandruff. White or gray hair can sometimes, but not always, be coarse, wiry, dry hair, and be difficult to manage." Vegetable dye is the longest lasting temporary dye. The chemical-free method can "last anywhere from 1-30 shampoos, depending on how dark or saturated the tone of color is," Diaz says. We already know that it affects both our skin and our joie de vivre, and now new research has shown the toll stress takes on the colour of our hair. The study, published this week by Nature, found that mice who endured stressful events were more likely to have grey hair, thanks to an acceleration of the process by which pigment (which makes up hair colour) is produced. Put simply, when our nervous systems are put under stress, we run out of the stem cells that change into pigment-producing cells faster than we would if they weren’t. Cue grey hair.

Whether you're a Gen Z-er who wants to mix up your look by going prematurely silver or you're someone who simply wants to make a seamless transition to gray hair for the first time, there are plenty of options for going silver at home. Just keep in mind that for the ultimate color payoff, many silver dyes require starting with light-colored or bleached hair — which means you will likely want to proceed with caution if your hair isn't already one of those shades. Who are gray hair dyes best for? Just as blondes’ lighter hairs are more prone to becoming discoloured as a result of the environment and the chemicals they’re exposed to, the same is true of grey hairs. Using violet or blue-pigmented formulas will help to impart an icy fresh, youth-boosting finish to the hair, lifting its natural hues. Wood’s own Colour Shade Shot Gloss in Icy Blonde is both a semi-permanent colour and a hair treatment, which rids hair of any cigarette stain-esque yellow tinge while delivering hair-bolstering quinoa protein and moisturising shea butter. S emi-permanent hair dye lasts at least a week. "Semi-permanent hair color molecules are larger, so they don't penetrate into the hair and instead act as a stain in the cuticle layer of the hair," explains Diaz.

The verdict: Root cover ups

Colored hairspray is exactly what it sounds like — hairspray with added color! Each application lasts about 2-4 shampoos.