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It depends on the color of your hair. Grays tend to blend in on lighter hair or hair that is highlighted, so you can probably get away with using a spray or powder to lightly blend them in. But on darker hair, grays can look quite pronounced, making a semi-permanent root cover-up a better option.
Gray roots, being lighter, are often simple to conceal. “Covering gray roots is easy these days — there are so many products that will help you out in between color services,” Knight says. “If your grays are particularly stubborn, then use a highly pigmented, opaque touch-up powder or spray.” 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: If you haven’t tried an at-home gloss, you’re missing out on your best hair color ever. A gloss adds semi-permanent color to the tops of your strands (aka no bleach or peroxide is in the formula) to get rid of brassiness or unwanted tones and bring out the best version of your color—dyed or natural. 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. The dpHue Gloss+ makes highlights pop and amplifies your shade, however it cannot lighten or provide full coverage for grays (there’s a chance they’ll take a tint and be less noticeable, though). In 12 comprehensive shades, there’s likely an option for every hair color; including clear if you just want shine, and the moisturizing formula actually helps your hair as it colors.Permanent color fully covers regrowth and grays and also has the ability to lift your natural hair color. It lasts four to six weeks. Demi-permanent color blends gray roots into your dyed color and appears more translucent, Ikeda notes, with results lasting four to eight weeks. Semi- and demi-permanent color are less commonly used for root touch-ups because the regrowth may still be visible. Andrew Fitzsimons isa celebrity hairstylist who splits his time between New York and Los Angeles. His work spans editorial and commercial campaigns, and he's an expert in color blending and color matching for all hair shades, types and textures. What to Look for in a Root Touch-Up Shade 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. Though the Madison Reed Root Touch Up Powder is more expensive than other options on this list, the amazing benefits make it worth the money. “It’s a deeply pigmented powder (think of it like an eyeshadow), that you can use to blend out the grays that poke through in between color services,” says celebrity hairstylist Sami Knight. “Because it’s so pigmented, you get a really seamless opaque look that’s really undetectable.” If you dye your hair frequently, you know the pesky reality of the time between visits to the salon. There’s regrowth, the reappearance of greys, and problem of mismatched color. No matter what color you choose to dye your hair, roots are the telltale sign that it’s time to head to the salon ASAP. However, this leaves one question: What do you do in-between appointments? Since a gloss is an allover treatment, this will deposit color evenly all over your head, not just at the roots.The best I’ve used is L'Oréal Paris Magic Root Cover Up Concealer Spray,” Knight admits. “It’s specifically formulated for blondes with dark roots, so you’ll have your roots brighter in seconds, without the bleach.” To achieve a full coverage application — with the Magic Root Cover Up or any root concealer spray— she says to spray the formula into the cap and use a small makeup brush to paint it on. “Picasso your way to perfect highlights!” Colors aside, Knight says that powder root concealers work best for short roots or a few grays, while spray root concealers are ideal for larger sections of growth or heavier gray density. Still, she says that the best root concealers, and how to apply them, really are subjective. “Try all the options, one will be the best for you,” she says. We know that if you want to hide different colored roots or grays, the inclination is to spray a lot. Hold up: the biggest tip Hazan has to offer is to not overdo it with the spray, powder, or crayon. She says a little goes a long way with root touch-up products, so use whichever product you go for sparingly. The goal is to make the color look as natural as possible. For root touch-ups, in particular, explains celebrity hairstylist, Andrew Fitzsimmons, it's not just about trying to match the exact shade of your hair. “It's also important that you assess how different your dyed hair color may be from your natural one, which can determine the best type of product to use on your hair altogether.”
In short: You get natural-looking color that doesn't rub off. You also get two brushes for application — one for hair and the other for your eyebrows. And those with blonde hair get a palette with two colors to create more depth and dimension. All in all, it's one of the best multi-tasking root-touch-up products out there. It works best covering small amounts of root growth, so if you have significant grow out, you may want to try something else. In the Beauty Lab's permanent root touch-up products test, scientists dyed human hair samples in brown, red and blonde shades mixed with gray, then assessed initial gray hair coverage and shine using the Chromameter machine. Next, each dye's color retention was gauged by putting the dyed hair samples through 20 wash and dry cycles using the Swatch Wash Station and four hours of UVA light exposure with the Q-Lab QUV Accelerated Weathering Tester. Final Chromameter readings where taken, then Beauty Lab scientists assessed color change in the dyed hair samples to determine how well each resisted fading. First things first: Certainly don’t attempt to dye your hair at home—it can bring about a whole slew of other problems. But what you can do is use one of these handy root touch-up products to conceal your color problems. Aside from being super simple to apply—just a spray or dab of color is all it takes—it's an easy, affordable way to conceal your roots until your next hair appointment. Best of all, the color will stay put during the day but wash out regularly with shampoo at night. All in all, it’s a safe reprieve to your color woos. 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. Going for an important meeting, impromptu dinner date or a big reunion and no time for a salon appointment or colouring your hair at home? Well, no more fretting!
The verdict: Root cover ups
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