You walked out of the salon with the perfect, creamy blonde. A few weeks later, it's looking a little yellow. Or orange. Or both.
Sound familiar? You're not alone. "Why does my blonde turn brassy?" is one of the questions I hear most behind the chair, especially this time of year.
Here's something I always tell my clients:
Brassiness doesn't mean your color was done wrong. It's what lightened hair naturally does over time.
The good news? Once you understand why it happens, there's a lot you can do to slow it down. And for everything else, that's what I'm here for. Let's break it down.
What Is Brassiness, Exactly?
When we lighten your hair, we're lifting out your natural pigment in stages. Darker hair moves through red, then orange, then yellow, then pale yellow.
Those warm undertones never fully disappear. They're always sitting underneath your blonde.
That's where toner comes in. A toner neutralizes those warm tones so your blonde looks soft, bright and intentional. But toner is semi-permanent, which means it fades a little with every wash.
As it fades, the warmth underneath starts to peek through. That's brassiness.
And it's not just for blondes. Brunettes can see unwanted red, copper or orange warmth, whether they have highlights, balayage or all-over color.
Can Brunettes Turn Brassy, Too?
Absolutely. Brunette hair can develop unwanted warmth, even if you've never gone blonde. When naturally dark hair is lightened for highlights or balayage, its underlying red and orange pigments become more visible. As a cool-toned gloss or toner fades, those tones can start to show through.
Even an all-over brunette color can start looking reddish, coppery or orange as cool pigments fade and the hair is exposed to sun, frequent washing, heat or mineral buildup. That's why a rich, cool brown can look warmer a few weeks after an appointment.
The solution depends on the tone you're seeing. Blue-based products can help soften orange, while unwanted red often calls for a different professional formula. A customized brunette gloss can bring back a richer, more balanced shade without necessarily making the hair darker. And remember, warm brunette shades can be gorgeous, too. It's only brassiness if the warmth isn't what you wanted.
What Makes Blonde or Brunette Hair Turn Brassy Faster?
Toners and cool color pigments fade over time. A few everyday things can speed up that process:
Hard water or well water. Minerals like iron and copper build up on the hair and pull it warm. If you're on well water, you may notice this more.
The sun. UV exposure breaks down toner and can lighten and warm up your blonde.
Heat styling. Flat irons and curling irons without heat protectant are tough on tone.
Pools and the ocean. Chlorine and salt water can strip toner and dull your color.
The wrong shampoo. Harsh sulfates and clarifying shampoos wash toner out faster.
Stretching your appointments. The longer it's been since your last toner, the more warmth you'll see.
How Can I Keep My Hair From Turning Brassy at Home?
A few small changes in your routine can make a big difference:
Use a purple shampoo, but don't overdo it. Purple cancels out yellow. (If your warmth leans orange, blue shampoo is your friend.) Once or twice a week is plenty for most clients. Use it every wash and your blonde can start looking dull or even a little lavender.
Switch to a color-safe, sulfate-free shampoo for your regular washes, and try to wash a little less often.
Turn the water temperature down. Hot water opens up the hair cuticle and helps toner slip out faster.
Add a shower filter if you're dealing with hard or well water.
Always use a heat protectant, and turn your tools down when you can.
Protect your hair from the sun with a hat or a UV-protectant spray.
One important note: purple shampoo helps maintain your tone. It can't replace a professional toner once the brass has really set in.
When Do I Need a Toner or Gloss?
If your purple shampoo isn't keeping up anymore, it's probably time for a refresh in the salon.
A toner or gloss refreshes your tone, whether you're keeping a blonde bright or a brunette rich and balanced. It also adds beautiful shine. Many of my color clients come in for a gloss between larger appointments, often every 6 to 8 weeks, to keep their color looking fresh.
If the brass keeps coming back quickly, we'll dig a little deeper. We'll look at your formula, your home care routine and even your water so we can build a plan that lasts.
Wearing blonde extensions? They're affected by many of the same things, including sun, chlorine, minerals and even certain sunscreens. Check out last week's post, Are Hair Extensions Right for Me?, for my tips on protecting them.
Ready to Love Your Color Again?
Brassiness can show up in both blondes and brunettes. It doesn't mean you have to live with it.
With the right home care and regular toning, your blonde can stay bright and your brunette can stay rich and dimensional between appointments. And when it needs a little extra help, I've got you.
Ready for a refresh? Book a toner, gloss or color consultation at J. Edwards Hair in Orange, CT. Text (855) 826-8779 or book online, and let's get your color back to where you love it.