How to Make Your Hair Color Last Twice as Long

At the salon: "You want to leave the salon with your hair a bit more gray and dingy than you originally liked, so it doesn't become yellow so quickly," Darling says. Ask for an ashy tone, and if you notice some brassiness in the coming weeks, go back in and ask for a violet-based gloss treatment to help restore the icy color. At home: Remember that it's quality, not quantity—while there are a lot of amazing products geared to platinum blonde, a lot of them are blue and purple based, which (while great for counteracting yellow tones) can leave a violet cast when overused. Darling says you're more likely to preserve your color if you cut back on shampooing to just a few times a week at the most. When you do need a wash, Pureology Perfect 4 Platinum Shampoo is a favorite, and keep your strands hydrated and shiny between showers with Rita Hazan's brass-fighting gloss. Other than that, steer clear of chlorine pools as much as possible. Rita Hazan Ultimate Shine Gloss in Breaking Brass, $26; sephora.com Pureology Perfect 4 Platinum Shampoo, $64; ulta.com

At the salon: Because it has yellow tones by definition, a sunny blonde can easily veer brassy, so it's wise to start a bit darker in hue to prolong its fade time. "You should leave the salon with your hair looking deeper gold," Darling says. At home: Darling says to stick with a golden conditioner between salon visits. Davines' Alchemic Conditioner (which is beloved by stylists and comes in every hair color) is color-depositing so that your hue is refreshed every time you shower. Clairol Shimmer Lights Shampoo, an editor favorite, will tackle any orange-y tones that shouldn't be there. Clairol Shimmer Lights Conditioning Shampoo, $9; sallybeauty.com Davines Alchemic Golden Conditioner, $29; davines.com

At the salon: Embracing the edgier rose gold trend when you first hit the salon is a great way to make copper strands last. Ask your stylist to use a pink-based toner to punch it up, Darling says. At home: All shades of red are tricky to maintain, and usually it's best to leave to leave toning and color glossing to the professionals. That being said, Wella's Color Charm toner is one of the few great at-home options—try it in Light Copper. For shampoo and conditioner, use redhead-geared products for your best results, like John Frieda's Radiant Red line. John Frieda Radiant Red Colour Protecting Shampoo, $5; target.com Wella Color Charm Liquid Permanent Hair Color in Light Copper, $6; sallybeauty.com

At the salon: Rainbow hues are Darling's specialty. "With pastel colors, you should leave the salon a bit more saturated," she says. "The sun will do its part in making it pastel over the following weeks." At home: This look is a little more low maintenance, as you want the sun to fade it out a bit. But that being said, you still need to keep your strands hydrated and nourished so you don't fry out your 'do. Michael Gordon, founder and former president of Bumble and bumble and founder of Hairstory, created Purely Perfect Cleansing Creme with the idea that frequent shampooing is too harsh on hair (think of it as the product for the co-washing and "no poo" movements). The cult-favorite cream is basically an all-in-one conditioner rather than an all-in-one shampoo, gently cleansing and keeping hair nourished, smooth, and color-protected. On really sun-drenched days, go for a deeper conditioning treatment like La Tierra Sagrada's naturally formulated (and divinely fragranced) hair masque. Purely Perfect Cleansing Creme, $40; purelyperfectproducts.com La Tierra Sagrada Treatment, $18; latierrasagradahair.com

At the salon: Ombre, sombre, and balayage highlights aren't just low maintenace for your roots—they also tend to look better with more sun exposure. "For this look it's best to do nothing, since the summer activities should only make it look better," Darling says. Brassiness is still a risk, so ask your stylist to pick ashier tones when you first get the highlights done. At home: Like the pastel colors, your focus is more on keeping your hair healthy and sealing in the color you have than constantly toning it. Rita Hazan's two-step Weekly Remedy deeply hydrates hair and keeps it shiny, and this Oribe masque is specifically formulated to deep condition and protect locks from sun damage. Oribe Masque for Beautiful Color, $59; barneys.com Rita Haza Weekly Remedy, $42; ulta.com

At the salon: Just know ahead of time that true reds and auburns are a bigger commitment than most other hair colors. "You need to accept that your hair is going to fade, as red is the hardest color to keep in the hair since the molecule is so large," Darling says. Just go in for glosses and touch-ups as frequently as possible. At home: Since at-home red dyes and toners can quickly veer to the Kool-Aid end of the color spectrum, it's best to leave coloring to the professionals. Maintain the hue between visits with sulfate-free, color-specific products, like Davines' new Minu line. Keep strands protected and lustrous with a clear gloss, like John Frieda's Clear Shine. Davines Minu Conditioner, $29; davines.com John Frieda Clear Shine Luminous Color Glaze, $10; ulta.com

At the salon: Any color with warm tones is going to be more prone to brassiness. "Make sure it's extra ashy when you leave the salon, so it doesn't get orange quickly," Darling says. At home: Try to space out shampoos as much as possible—and when you do need a wash, stick with R + Co's Gemstone shampoo, which will gently help protect color and nourish hair. Before you head outside, spritz your locks with Fekkai's UV-protecting spray to slow fading. R + Co Gemstone Color Shampoo, $24; randco.com Fekkai Pré-Soleil Hair Mist, $20; birchbox.com

At the salon: "You should go extra chestnut, and ask the stylist to leave the gloss on for an extra five minutes so it will stay rich," Darling says. At home: Nothing punches up a deep brown hue like major shine, so keep things healthy and hydrated with Amika's color-protecting Shampoo. Follow it with Shu Uemura's glossing conditioner for luster. Amika Color pHerfection Shampoo, $22; birchbox.com Shu Uemura Art of Hair Color Lustre Brilliant Glaze Conditioner, $58; birchbox.com

At the salon: Ask your colorist to add extra blue in the tone to avoid it looking brown, Darling says. (And if it does, stop in for a blue-based gloss treatment.) At home: With this in mind, pick blue-toned products to keep your black looking sharp; Aveda's Blue Malva conditioner is a fan favorite. For Kardashian-level shine, pick a clear glaze like Kerastase Gloss Appeal. Aveda Blue Malva Conditioner, $21; aveda.com Kerastase Gloss Appeal Topcoat, $37; kerastase-usa.com