Blonde hair needs more than just a good cut or colour. It needs the right care between salon visits to stay cool-toned and brass-free. At Stonehills Hair, we know how frustrating it is when your colour fades or turns yellow too quickly. That’s why we recommend using purple shampoo as part of your regular routine. In this guide, we’ll explain how to use purple shampoo properly, how long to leave it in, and how often you should apply it. You’ll also find product suggestions tailored to different hair types and tones.
What Does Purple Shampoo Do?

If your blonde hair is starting to look dull, purple shampoo helps refresh the colour by neutralising warm, yellow tones. It works using violet pigments, which sit opposite yellow on the colour wheel. When applied, these pigments reduce brassiness and bring your blonde back to a cleaner, cooler finish.
This isn’t just for bleached hair either. Purple shampoo also helps:
- Highlighted hair to stay bright.
- Silver and grey tones look polished.
- Balayage or ombré hair maintains contrast.
Using a tone-correcting product like the Olaplex No. 4P Blonde Enhancer Toning Shampoo helps protect colour while also strengthening your hair.
How to Use Purple Shampoo Step-by-Step
Getting the most from your purple shampoo means applying it correctly. Here’s how to do it:
1. Wet Your Hair Thoroughly
Purple shampoo should always be used on wet hair unless directed otherwise by the product. This helps create a better lather and spreads the pigments more evenly.
2. Apply a Small Amount
Start with a small amount and add more if needed. Focus on areas where you see the most brassiness—usually around the face and at the ends.
3. Massage and Leave-In
Lather the shampoo evenly from root to tip. How long you leave it in will affect the result (we cover that below).
For a rich, professional-grade formula, try Kérastase Blond Absolu Bain Ultra Violet, which tones while hydrating and strengthening the hair fibre.
4. Rinse Well
Rinse thoroughly to prevent any purple residue from staying on the hair. Poor rinsing can lead to patchy or uneven tone.
5. Follow With a Conditioner
Purple shampoo can be used alone for drying. Always finish with a conditioner, ideally one designed to protect blonde tones. The Philip Kingsley Pure Blonde Silver Conditioner is a great match.

How Long Should You Leave Purple Shampoo In?
This depends on how brassy your hair is and the intensity of the product. Here’s a basic guide:
- 1–2 minutes: Light refresh, ideal for regular use
- 3–5 minutes: Moderate toning for visible yellow tones
- Up to 10 minutes: Strong correction for platinum, silver, or white hair
Be cautious with highly pigmented products. Leaving them in too long can leave a violet tint, especially on porous or damaged hair. Start with less time and build up as needed.
For a more forgiving formula that suits sensitive or dry hair types, the Natulique Pure Silver Shampoo is gentle enough for regular use.
How Often Should You Use Purple Shampoo?
Purple shampoo should not replace your everyday shampoo. Overuse can cause the hair to become overly cool or dull. A general guide:
- Once per week: For lightly processed or highlighted hair
- Twice per week: For full-head bleach, platinum, or grey tones
- Less often: If your blonde is already cool and doesn’t show much brassiness
In between, use a regular colour-safe shampoo to maintain hair health. Too much toning can lead to build-up or unexpected dullness.
Can You Use Purple Shampoo on Dry Hair?
Some articles suggest using purple shampoo on dry hair for a stronger result, but this method comes with risks. Applying it dry can lead to uneven absorption and patchy colour, especially if your hair is already damaged or porous.
Unless the product clearly states it’s suitable for dry application, always use it wet. If you’re looking for stronger toning without the risk, a styling product like ColorWow Color Control Purple Toning Styling Foam can be applied to dry hair safely and offers flexible tone control.
Which Purple Shampoo Is Right for You?
Not all purple shampoos are the same. Consider your hair goals before choosing a formula:
- Dry or damaged hair: Look for nourishing options like Kérastase or Natulique
- Platinum or silver tones: Choose highly pigmented options like Olaplex No. 4P
- Everyday maintenance: Use a balanced product like ColorWow foam to tone and style
Stylist Tip: “If your hair is feeling dry or brittle, alternate your purple shampoo with a moisture-rich formula every second wash. This keeps the tone fresh without compromising hair condition.”
You can shop purple shampoo and much more blonde hair care products in our online shop, or you can ask our team for tailored recommendations.
Trusted Blonde Care at Stonehills Hair
Keeping your blonde bright shouldn’t be a guessing game. You can maintain your colour between salon visits with the right purple shampoo and a consistent routine. At Stonehills Hair, we offer a full range of products, including Kérastase Ultra Violet, Olaplex No. 4P, and ColorWow, to help you care for your hair with confidence.
Want help choosing the right formula? Visit the Stonehills salon or shop online now for trusted purple shampoos and conditioners.