Balayage is one of the most popular hair colour techniques in the UK — and one of the most expensive. Done well, it should last months. Done with poor aftercare, it can turn brassy and dull within weeks. Here is how to protect your investment.
The First 48-72 Hours
Avoid washing your hair for at least 48 hours after your appointment — the longer you can wait, the better the colour will set. The colour is still oxidising and settling into the hair shaft during this window.
Switch to Colour-Safe Sulphate-Free Shampoo
Sulphates are powerful cleansing agents that strip colour from the hair shaft with every wash. Switching to a sulphate-free, colour-safe shampoo immediately after your balayage will meaningfully extend how long the colour stays vibrant. Olaplex No.4, Redken Color Extend, and Aveda Color Conserve are popular choices.
Use Purple or Brass-Toning Shampoo Weekly
Balayage lightened sections are susceptible to brassiness — an orange or yellow tinge caused by oxidation. A purple or blue-toning shampoo used once a week neutralises warm tones and keeps blonde sections cool and bright. Leave it on for 3-10 minutes. Do not use it every wash — it can deposit too much pigment.
Deep Condition Regularly
Lightened hair is chemically processed and more porous than uncoloured hair. A deep conditioning mask once a week restores hydration and keeps hair looking healthy rather than straw-like.
Protect from Heat and Sun
UV rays fade colour. In summer, wear a hat or use a UV protection hair spray when spending extended time outdoors. Always use a heat protectant before blow-drying or using hot tools.
When to Book Your Next Appointment
Most clients return for a refresh every 3-4 months. A toner gloss (a quick 30-minute in-salon treatment) can buy you another month without a full appointment.
Find hair colourists near you on Glowbooks to compare balayage specialists and read reviews.
Frequently Asked Questions
Why has my balayage gone orange?
Brassiness is caused by underlying warm pigments that were not fully lifted, or by oxidation over time. A toner applied at the salon neutralises this. For mild brassiness, use a purple shampoo at home.
Can I swim with balayage?
Chlorine and salt water both strip colour and dry out lightened hair. Apply a leave-in conditioner or hair oil before going in the water, and rinse immediately after.
How long does balayage last?
The colour can last 3-5 months before a refresh is needed. Because it grows out naturally, there is no fixed maintenance schedule.