Purple Shampoo 101: What Is Purple Shampoo and How Often To Use It

Brassy tones don’t stand a chance with the best purple shampoo in your corner. Whether you're a cool blonde, icy silver, or platinum superfan, keeping your color bright and your tone balanced starts with understanding how purple shampoo works—and how to use it correctly.

Purple shampoo is more than just a trend. It’s a game-changer for anyone with lightened or highlighted hair. In this guide, we’ll walk you through what purple shampoo is used for, how often to use purple shampoo, and what to expect when you incorporate it into your routine. We’ll also introduce you to the L’Oréal Paris EverPure Sulfate-Free Purple Shampoo, our best purple shampoo—and the top-selling formula in the country. Keep reading for the scoop and get ready to rock your best, brightest blonde.

What Is Purple Shampoo?

Purple shampoo is a pigmented formula designed to neutralize brassy, yellow tones in blonde, silver, or gray hair. Instead of altering your base color, it refreshes and tones lightened strands by depositing violet pigments on the surface of the hair. It’s not about dyeing—it’s about toning.

So, what does purple shampoo do? It uses color theory to cancel out yellow hues. Purple sits opposite yellow on the color wheel, which means it neutralizes unwanted brassiness to bring back your cool, bright blonde. You may also hear the term “silver shampoo”—while similar, it’s generally tailored for gray or white hair.

What Does Purple Shampoo Do?

In simple terms, purple shampoo corrects tone. Lightened hair often reveals warm undertones, especially after toner fades from washing, heat styling, or sun exposure. What is purple shampoo used for? It’s your go-to between salon visits to help maintain that just-toned finish. It keeps your color crisp, fresh, and free of yellowing.

Wondering how does purple shampoo work? Think of it like a filter for your strands—it layers on a sheer veil of purple pigment that offsets brass and gives your hair a cooler appearance.

How to Use Purple Shampoo

Step-by-Step Instructions

1. Wet your hair thoroughly.
Start with clean, wet hair to help the purple pigments spread evenly. Use warm—not hot—water to open the cuticle slightly so the formula can work its magic.

2. Apply purple shampoo to the brassiest areas first.
Focus the product where your hair tends to turn yellow or orange—typically the mid-lengths to ends. If your roots aren’t lightened, avoid them to prevent unwanted staining.

3. Gently massage and let it sit for 1 to 3 minutes.
Distribute the shampoo evenly through your hair using your fingertips. Don’t rub aggressively. Let it sit just long enough for the violet pigments to tone your hair—no more than 1 minute for porous or platinum strands, and up to 3 minutes for more stubborn brass. Always check your product’s label for specific timing.

4. Rinse thoroughly with cool water.
Rinse until the water runs clear. Cool water helps seal the cuticle and lock in shine, leaving your toned hair smooth and refreshed.

5. Follow up with a purple conditioner.
Using a purple conditioner adds an extra layer of toning while restoring hydration, which is key after color-treating. It helps soften strands and seal in cool tones for a polished, glossy finish.

Usage Tips for Best Results

Use gloves to avoid staining your hands.
Purple shampoo is highly pigmented—and while it won’t dye your hair permanently, it can temporarily tint your fingers or nails. A pair of disposable gloves helps keep things mess-free.

Don’t panic if you don’t see results after one use.
It can take a few washes to fully tone your hair, especially if the brassiness is strong or your hair is thick. Stay consistent—brighter, cooler tones will come with time.

Avoid leaving it on too long.
More is not more. Leaving purple shampoo on for too long—especially on fine, light, or porous hair—can lead to a lavender or gray tint. Set a timer and stick to the recommended time on the label.

Stick to once or twice a week.
Wondering how often to use purple shampoo? Using it more than recommended can dry out your strands or make your color look dull. One to two times per week is typically enough to keep brass away and your hair looking fresh.

Always pair with a purple conditioner.
Purple shampoo tones, but it can leave hair feeling slightly dry if used alone. Following with a coordinating conditioner hydrates your strands and enhances the toning effect for balanced, glossy results.

How Often Should You Use Purple Shampoo?

The sweet spot is typically once or twice a week. Overuse can lead to a dull, ashy tone, especially on very light hair. If you’re asking when to use purple shampoo, base it on your brassiness level and hair type. Always follow the instructions, and pair with a purple shampoo and conditioner set to get the best, balanced results.

People often wonder: does purple shampoo damage hair? The answer depends on how you use it. Too much of a good thing, even if it’s the best purple shampoo, can cause dryness or buildup, particularly in porous or chemically treated hair. Stay consistent but don’t overdo it.

Can You Overuse Purple Shampoo?

Yes—while it’s tempting to use the best purple shampoo every wash, restraint is key. Too much purple pigment can build up on your hair and leave it with a lavender tinge. If this happens, a few washes with a clarifying shampoo should help fade it.

What Are the Risks With Purple Shampoo?

When used properly, purple shampoo is a powerful tool. But overuse may lead to dry, dull hair or unwanted staining—especially if your strands are damaged or porous. Always follow with a moisturizing conditioner, and don’t forget your weekly deep treatment.

What Does Purple Shampoo Do to Brown Hair?

If your brunette strands feature lightened highlights, the best purple shampoo can help tone those pieces beautifully. But for darker brown hair with orange brassiness, you’ll want to reach for a blue shampoo instead. Just like with purple, blue shampoo should be used sparingly—once a week is a good starting point.

Our Best Purple Shampoos and Conditioners

Choosing the best purple shampoo starts with finding a formula that works with your hair type, color level, and tone goals. L’Oréal Paris offers a range of targeted solutions to neutralize brassiness while nourishing your strands—whether you’re a bright blonde, a cool-toned brunette, or rocking silver hues. Here’s how to build your toning routine with our top-performing picks:

L’Oréal Paris EverPure Sulfate-Free Brass Toning Purple Shampoo

This crowd-favorite shampoo is loved for its gentle, sulfate-free formula that delivers salon-level toning at home. Infused with hibiscus and purple dye, it helps cancel out yellow and orange undertones in color-treated blonde, silver, or highlighted hair. Just one wash reveals a visibly brighter, cooler tone—without compromising softness or hydration.

L’Oréal Paris EverPure Sulfate-Free Toning Purple Conditioner

Tone and treat your hair in one step with this hydrating conditioner. Designed to work seamlessly with the EverPure Purple Shampoo, it helps eliminate lingering brass while infusing hair with moisture. The creamy texture glides through strands to soften and smooth, leaving your color vibrant and your hair silky—not stripped. Use it after every purple shampoo session for balanced results.

L’Oréal Paris EverPure Anti-Brass Purple Mask Treatment

If your hair is stubbornly brassy, this concentrated 5-minute mask delivers an ultra-potent dose of violet pigment to neutralize orange and yellow tones fast. Ideal for when your regular purple shampoo just isn’t cutting it, this sulfate-free treatment is enriched with nourishing ingredients and free from harsh salts or surfactants. Simply apply to towel-dried hair after shampooing and conditioning, leave on for five minutes, then rinse for instant clarity and shine.

Next Up: What Does Blue Shampoo Do and How Do You Use It?

Photo courtesy of L’Oréal Paris