To make your color last as long as possible, she says you should "always wash with cold water, using color safe products. Also, use low heat and heat protection while styling where high heat will also result in color fading." Created with your hair’s health in mind, the SheaMoisture Purple Rice Water Shampoo delivers a moisturizing and strengthening blend of wild orchid and sweet violet extracts directly to your strands to prevent brittleness and breakage. Its purple-hued formula also corrects the look of yellow, brassy tones in color-treated hair, enhancing, preserving and extending its vibrancy while giving it a mineral-rich, gentle impurity-cleansing lather. If you're looking for a shampoo that utilizes natural ingredients instead of synthetic dyes, this shampoo from Klorane is the right choice for you. It contains centaurea extract, which the brand claims can brighten hair and prevent gray hair from yellowing. Reviewers loved that their hair was shiny and soft after using and that their scalp felt squeaky clean.

The secret weapon you need to deploy in your haircare arsenal, then, is this: A shampoo for coloured hair.From her first appearance alongside boyfriend Prince Harry in 2017 to the present day, these are Meghan Markle's fashion favorites.

It certainly wouldn't hurt! Because you don't live in a bubble, it can be hard to keep environmental factors from altering your hue. While a purple shampoo can put in the work to counteract brassy tones, pairing it with a coordinating conditioner can help keep your hue pristine until your next salon visit.Why It's Worth It: The hero of this formula is provitamin B5, also known as panthenol — which has had promising clinical results in terms of increasing hydration and fortifying weak strands. (Plus, it's free of both silicones and sulfates.) What's left is simply smooth, shiny hair. Once the temporary hair color has successfully been applied, Blais says that it typically lasts "10-12 washes, depending upon how often you wash your hair or how light the canvas of hair they were applied to. Vivid color always lasts best on hair lifted to pale blonde or what I like to tell people—the color inside of a banana." Why It's Worth It: For curly hair in particular, Beverly Hills-based colorist Cherin Choi is obsessed with the Davines Love Shampoo, which indulges dry, frizzy hair in intense hydration without weighing it down. The resulting smooth and shiny texture you'll see is courtesy of olive extract (derived from a small Silician farm), which is abundant in moisturizing fatty acids and vitamin E to bulldoze through frizz and keep your color intact for weeks on end.

Pros: vegan; cruelty-free; expert-approved; free of parabens, ammonia, and peroxide; easy to use and mix

Designed to neutralize brassiness in all hair colors, the Aveda Blue Malva Shampoo deposits a violet-blue hue that tones, brightens and protects your color-treated strands. Especially beneficial for blond and gray hair that’s prone to dullness and unwanted warm tones, this cool-toned shampoo wraps your strands in hair-healthy ingredients like amino acids, sweet almond oil and aloe vera juice to ensure that it’s properly hydrated and nourished while leaving your hair lightly fragranced with the brand’s signature organic ylang-ylang, lemon and eucalyptus scent. The jury is still kind of out on this one. While sulfates are usually given the side-eye — for example, they're a no-go, according to our very own Clean Best of Beauty seal — they aren't necessarily as bad for preserving your hair pigment as they're made out to be. Cosmetic chemist Randy Schueller previously told Allure that water is as damaging as any cleanser. "When your hair gets wet, it swells, the hair shaft opens, and some color leaches out," says Schueller, who tested sulfates against other surfactants and didn't see any notable differences in terms of fading color. (This is why many experts suggest washing your hair less often and spritzing dry shampoo to buy you extra time in between.) The sun might be slowly slipping away seeing as we're now officially in autumn, but the UV rays can still peek through the clouds. We all know they aren't the best for maintaining coloured hair, so a shampoo for coloured hair is still necessary when it comes to autumn haircare. With balayage and the Scandi hair line proving to be some of this year's biggest hair trends, it's safe to say that our love for all things hair dye isn't going anywhere. Yes, this too has violet pigments, but it goes above and beyond the gray-enhancing call of duty. Credit the addition of UV protectants that help guard against sun-induced fading (yes, the sun takes a toll on your hair just like it does on your skin) while also hydrating and increasing shine. Also nice: It’s a great option for all hair types and textures.

Why It's Worth It: Imagine washing your hair (and conditioning it, of course) 40 times after coloring it and still seeing the same vibrancy and richness after stepping out of the shower that 40th time. It seems far-fetched, but it's exactly what this shampoo can do. The formula is centered around elastin protein and quinoa, a combo that helps hold onto your color's vividness. And while it won't double as conditioner, it does include a conditioning polymer to leave hair soft, not dry.As a general rule of thumb, cooler colors offset warm tones. So, opting for a cool-hued blue shampoo will help minimize orange, brassy tones in color-treated brunette strands, whereas purple shampoos work best at eliminating yellowness and brassiness in blond, gray and silver strands. There are also color-depositing shampoos that cater to bolder colors like pink, green, blue and purple and come in a variety of brightly tinted formulas. Millington KR, Marsh JM. UV damage to hair and the effect of antioxidants and metal chelators. Int J Cosmet Sci. 2020;42(2):174-184. doi: 10.1111/ics.12601