What Sunil says: "A full believer in the restorative and transformative powers of Olaplex, after having recently gone blonde, I was thrilled when they launched this product. It doesn't leave my hair feeling dry - my hair ACTUALLY feels better after using - and the colour payoff is seriously impressive." So when you wash with this particular shade of shampoo, it deposits purple pigment into blonde hair, to counteract any yellowy tones that start to shine through. What causes brassy hair? What Sunil says: "I was recommended this product by a beauty editor with many years of industry experience, so naturally I had to give it a go. IMHO it is THE very best purple shampoo on the market if you want that real shot of iciness. To get my hair blonde, it needs some serious bleaching, and suffice to say, it needs all the help and conditioning it can get. This instantly banishes any trace of brassiness. As long as I dye my hair blonde, there will be a bottle of this in my bathroom." Not only do the company’s products deliver accordingly, but they’re formulated ethically, avoiding animal testing and animal by-products, as well as unwanted sulfates and parabens. It's arguably blonde hair's biggest nemesis: brassiness. Why does it happen? "Lighter strands often struggle to look shiny and healthy," says Steve Shiel, scientific director at L’Oréal. "This is because free radicals in the colouring process break down protein so blonde hair becomes porous."

Use a Dollop Every Third Wash: Once you're ready to use a full dose of purple shampoo, Capri says to start using a half-dollar sized dollop every third wash. "But if you have been in the sun or feel as if your tone is too brassy, use purple shampoo at every wash until you get the desired results, then use once every third wash," she explains. So, next time you're in the middle of a hair disaster, consider grabbing a purple shampoo before you start to panic. But remember that purple shampoo is meant to be a temporary fix until your next dye appointment—not a permanent panacea. This porousness means bleached hair soaks up unwanted minerals and metals in your tap water and acquires a yellow tinge over time. "It also means that blonde hair absorbs light instead of reflecting it and is more prone to damage," adds Shiel. How to use purple shampoo Still unsure of where to start? Don't worry—we've got you covered. Below, the best purple shampoos to keep your shade of blonde hair bright. The Best Purple ShampoosIf you can’t avoid it, coat the ends in conditioner first to create a hydrating base and to dilute the shampoo. Then apply your purple shampoo in an 's' shape on mid-lengths and work it in with your fingers to deposit the pigment evenly." For how long should you leave purple shampoo in? Session stylist Ali Pirzadeh concurs and recommends using your regularconditioner afterwards."I wouldn't bother with a purple conditioner as well, as you want to make sure your hair is still being nourished." What's the difference between toner and purple shampoo?

The effect is softer, both in terms of the colour and how my hair feels afterwards. I wouldn’t recommend taking your purple shampoo right down to the ends. The hair there can be up to four years old so will grab onto too much of the purple pigment.Leave It On for 3-7 Minutes: Be aware of how long you leave a purple shampoo on each time, so you can figure out what will be the perfect timing for your hair and porosity. The more porous the hair, the more it will grab. Your first time, leave the formula on for the lowest amount of time the bottle recommends. Knowing that Pureology is a salon-trusted brand is reassuring when trying to decide whether a hair product is worth it or not. Regarding professional hair care, the brand is widely accessible and one of the better options overall. If, like me, you've dabbled in a blonde hair colour at some point or other, I'm sure you will know the continual struggle of preserving the high maintenance hue - after all, it's pretty common for bleached hair to go wrong (especially if you're DIY-ing). What you really need? A purple shampoo. Yep, unlike darker brown hair colours, blonde hair has an annoying tendency to fade and become brassy. Thankfully a toning purple shampoo can help prevent this. By switching your regular formula for one that caters to blondes, you'll totally transform your hair. Here's how... Why do I need a blonde shampoo? What Katie says: "This is the product I never knew I needed. The Olaplex system is the ultimate product range for protecting and caring for bleached hair. So the idea of a toning shampoo with the Olaplex technology inside is mind-blowingly exciting. It has become a must-have for me, as I use it alongside the rest of the range. I particularly like to use it straight after I've had my colour done when my hair is at its most vulnerable. If you're looking for a product that you can 100% rely on, this is that product."

Alternate With Moisturizing Shampoo: Alternate your purple shampoo with a moisturizing shampoo," says Wiley. "Depending on how brassy your blonde hair is, you won’t need to use the toning effects every wash, and it is important to add moisture and strengthen hair during the color process to keep hair healthy and strong." In 2001, Pureology was founded in California, where they are still based to this day. The main mission of the brand is to create products that work wonders on color-treated hair.While many hair care companies are infusing their products with toxic ingredients, the brand decided to formulate their products without any sulfates, and is certified as ZEROSULFATE®. One of the comments about this product reads, “ Love this conditioner too just make sure you wash it all out or it will leave blue tones to your hair. Once a week paired with the shampoo is all you need to keep your hair looking great!” This Pureology shampoo review will take a close look at their best-selling products, but let’s evaluate some pros and cons about the company first: Pros Use a Comb to Distribute: To ensure even distribution of your purple shampoo, make sure you use a wide-tooth comb to disperse the product in the shower.