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Why Does Blonde Hair Turn Brassy?

12/08/2026

A Perth Specialist Explains

If you’ve ever left the salon with the perfect creamy, cool or bright blonde only to notice yellow or orange tones appearing a few weeks later, you’re not alone.

Brassiness is one of the most common concerns we hear from our blonde clients at Dale James & Co Hair Salon in South Perth.

The good news is that brassy blonde doesn’t necessarily mean something has gone wrong with your colour.

Understanding why blonde hair becomes brassy is the first step towards keeping your blonde looking beautiful for longer.

What Does Brassy Blonde Mean?

When hair is lightened, the natural underlying warm pigments within the hair are exposed.

Depending on your natural colour, these pigments may appear yellow, gold, orange or even red.

Your colourist uses professional toners and carefully selected colour formulas to refine these tones and create your finished blonde.

Over time, however, that toner can gradually fade and some of the natural warmth underneath may begin to show through.

That’s when many clients notice their blonde starting to look “brassy”.

Why Does My Blonde Keep Turning Yellow or Orange?

There isn’t one single cause.

1. Your Toner Is Fading

Toner isn’t permanent.

How quickly it fades depends on your hair, how often you wash it, the products you use and your lifestyle.

A professional toner or gloss appointment between larger blonde appointments can refresh your colour without necessarily having to lighten your hair again.

2. Your Natural Hair Contains Warm Pigment

Dark blonde, brunette and darker hair naturally contains warmer underlying pigments.

The lighter we take the hair, the more of those pigments we need to work through.

This is why taking darker hair to a very light blonde may sometimes require several appointments.

At Dale James & Co, maintaining the condition of your hair is more important to us than trying to achieve an unrealistic result in one appointment.

3. Your Shampoo Could Be Affecting Your Colour

Not every shampoo is suitable for professionally coloured blonde hair.

Some products can cause colour and toner to fade more quickly, leaving your blonde looking warmer.

Your colourist can recommend professional home care specifically for your blonde.

4. Heat Styling Can Affect Blonde Hair

Hairdryers, straighteners and curling irons are part of everyday life for many of us, but excessive heat can affect the condition and appearance of blonde hair.

Always use professional heat protection and avoid unnecessarily high temperatures.

Healthy-looking blonde reflects light beautifully. Dry or compromised blonde can quickly appear dull.

5. Water and the Environment Can Play a Part

Minerals in water, swimming pools, sun exposure and environmental factors can all affect blonde hair.

If your blonde suddenly changes colour despite following your normal routine, mention it to your hairdresser.

Should I Use Purple Shampoo?

This is probably one of the questions we’re asked most often.

Purple shampoo can be helpful—but more isn’t necessarily better.

Purple sits opposite yellow on the colour wheel, which is why purple products can help neutralise unwanted yellow tones.

But not every brassy blonde problem is yellow.

If your hair is showing more orange than yellow, repeatedly using purple shampoo may not solve the problem.

Overusing highly pigmented products can also leave some blondes looking dull, flat or overly cool.

Ask your colourist whether purple shampoo is right for your particular blonde and how often you should use it.

Does My Blonde Need More Foils or Just a Toner?

Sometimes clients think they need their entire blonde service repeated when what they really need is a toner or gloss.

If the lightness is still there but the tone has changed, refreshing the toner may be enough.

If there is significant regrowth or you want to become lighter, your colourist may recommend additional foils, balayage or another lightening service.

This is where seeing an experienced blonde specialist in Perth can make a difference.

We look at what your hair actually needs rather than automatically repeating the same service every appointment.

How Can I Keep My Blonde Looking Fresh?

A few simple habits can make a big difference:

Use professional colour-safe shampoo and conditioner.
Use heat protection before styling.
Avoid excessive heat.
Follow the home-care routine recommended by your colourist.
Don’t overuse purple shampoo.
Book a toner or gloss when your blonde needs refreshing.
Have regular trims and treatments to keep your hair looking healthy.
Talk to your colourist if your blonde suddenly starts behaving differently.
Beautiful Blonde Starts With Healthy Hair

At Dale James & Co, we love creating beautiful blonde hair—but we also believe blonde should look and feel healthy.

Whether you’re dreaming of creamy blonde, bright foils, balayage, beige blonde, honey blonde or a complete blonde transformation, we’ll consider your existing hair, colour history and long-term goals before deciding on the best approach.

Our South Perth salon uses professional Wella colour, and our team continually undertakes professional education to keep developing our colour knowledge.

Looking for a Blonde Specialist in Perth?

If your blonde has become brassy, yellow, orange or simply isn’t the blonde you want anymore, come and talk to us.

You may not need a complete colour change. Sometimes the right toner, placement or maintenance plan can completely transform how your blonde looks.

Book a consultation with the colour team at Dale James & Co Hair Salon in South Perth.