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Purple shampoo is the modern blonde’s secret weapon. It tones, protects and gives you salon-quality results from home. But knowing how to use purple shampoo is the secret to achieving colour clarity, depth and shine with every wash.
Our guide will take you through every step of the purple shampoo process so you can have a blonde that’s never brassy and always brilliant.
HOW TO APPLY PURPLE SHAMPOO FOR THE BEST RESULTS
Purple shampoo isn’t just a wash-and-go product – it’s your blonde’s best defence against brassiness.
Firstly, what does purple shampoo actually do? It neutralises brassiness and orange or yellow tones, keeping your hair healthy and shiny. Using it correctly unlocks its full potential, keeping your blonde tones cool, vibrant and salon-fresh.
Here’s how to get the best results every time.
DOES PURPLE SHAMPOO WORK BETTER ON DRY HAIR OR WET HAIR?
For most, purple shampoo works best on wet hair. Moisture helps the shampoo distribute evenly, allowing the purple pigments to neutralise brassiness more effectively. However, if your hair has a lot of warmth or brass to counteract, applying purple shampoo on slightly damp hair may intensify toning.
Can I put purple shampoo on dry hair? You can, but it’s more likely to leave a temporary purple cast. It’s best to start with wet or damp hair for even toning and easier application.
HOW LONG SHOULD YOU LEAVE PURPLE SHAMPOO IN FOR EFFECTIVE TONING?
Timing is everything when it comes to purple shampoo. For most individuals with blonde hair, 1-3 minutes will give a subtle refresh, while 5-10 minutes works for deeper toning. For stubborn brassiness, you could try leaving purple shampoo in for 15-20 minutes.
Can I leave purple shampoo on for 30 minutes? It’s best to avoid leaving purple shampoo in for longer than 20 minutes. As for leaving it in overnight? That’s a definite no.
Pro tip: Always start with a shorter time and adjust as needed.
How often should I use purple shampoo? Typically, 1-3 times per week, depending on your hair type and colour.
DO YOU USE PURPLE SHAMPOO BEFORE OR AFTER REGULAR SHAMPOO?
If you’re aiming for a mild tone refresh, apply purple shampoo before regular shampoo. For stronger toning, start with regular shampoo to remove buildup, then follow with purple shampoo to get maximum pigment absorption.
After rinsing, follow with a conditioner – ideally a purple conditioner – to lock in moisture and protect your colour.
HOW DO YOU APPLY PURPLE SHAMPOO FOR EVEN TONING?
The best way to apply purple shampoo is similar to any other shampoo:
- Start with wet hair (or damp hair for a more intense result).
- Apply a dollop of purple shampoo into your palm, then massage it through your hair, focusing on areas prone to brassiness and lather evenly.
- Set a timer to ensure your purple shampoo stays on for the right amount of time – no longer than 20 minutes.
- Rinse with cool water to lock in colour and follow with a purple conditioner to keep hair smooth.

Integrating purple shampoo into your routine is the first step towards keeping your blonde vibrant.
HOW DO YOU USE PURPLE SHAMPOO WITH OTHER TREATMENTS?
Integrating purple shampoo into your routine is the first step towards keeping your blonde vibrant. Pairing it with other treatments ensures the best results for both your colour and hair health.
Here’s how to make every wash count with our TONI&GUY Purple Shampoo.
AFTER BLEACHING OR COLOURING
Bleaching and colouring can leave hair feeling sensitive, so it’s essential to balance toning with hydration. If you’re wondering if you can use purple shampoo after bleaching, our advice is yes. However, we recommend waiting 2-3 washes after your salon visit as your hairdresser has likely used toner. For best results after visiting the salon, try our StrengthPlex range to build resilience and strength after lightening or bleaching hair.
CAN YOU USE A HAIR MASK AFTER PURPLE SHAMPOO?
Absolutely. Purple shampoo is all about toning, but pairing it with hydrating treatments is crucial. Even better if that hydrating treatment also has toning power, like our TONI&GUY Purple Toning Mask.
After using purple shampoo, it’s also advisable to apply a conditioner to restore moisture and prevent dryness. Our TONI&GUY Purple Conditioner is designed to work alongside the shampoo, helping to lock in hydration and smooth the hair cuticle.
The combination of the complete TONI&GUY Purple Toning System keeps your blonde looking its best, especially when brassiness is stubborn.
CAN YOU MIX PURPLE SHAMPOO WITH REGULAR SHAMPOO?
For a gentler toning effect, you can mix purple shampoo with regular shampoo – perfect if you’re new to toning or just looking for a subtle refresh. To mix, simply combine a small amount of purple shampoo with your regular shampoo in the palm of your hand, then apply as usual.
UNCOVER YOUR BEST BLONDE
Ready to transform your blonde routine? Our complete TONI&GUY Purple Toning System has you covered. With a Purple Shampoo, Purple Conditioner and Purple Toning Mask, your colour will maintain its vibrancy and shine.
Explore the full range and find more expert tips for achieving salon-fresh results at home.