Why blonde turns brassy and how to keep a clean shade

After the salon your blonde was cool and clean, but a couple of weeks later it started turning yellow. That does not mean the colouring was done badly: almost all lightened hair behaves this way, and in Tashkent it happens faster. Here is why blonde turns brassy, what speeds it up and how to keep your shade at home and in the salon.

Where the yellow comes from

Lightening removes the dark pigment from hair, while the warm yellow-orange pigment stays the longest. Toning is what gives blonde its cool shade: it covers that warm base. The toner gradually washes out with every wash, and the warm base shows through again. Lightened hair is also porous, so it easily absorbs whatever is in the water and the air. The darker your starting colour and the lighter the blonde you want, the stronger this warm base is and the more closely you need to look after the shade between salon visits.

What speeds it up in Tashkent

• Hard water. Calcium salts, iron and copper settle on porous hair and leave a yellow or reddish cast.
• Sun. UV breaks down the toner and dries hair out, so blonde turns brassy much faster in summer.
• Hot tools. A straightener or hairdryer on full heat without heat protection "cooks" the shade.
• Dry air. During the heating season, dried-out hair becomes even more porous and loses colour faster.

Home care for blonde hair

• Purple shampoo or mask. Purple pigment cancels out yellow. Once a week instead of your usual shampoo is enough; more often and hair can go lilac and dry.
• Shampoo for coloured hair. Gentle cleansing washes out the toner more slowly. Wash with warm rather than hot water.
• Shower filter. Fewer salts and metals mean less build-up on your hair.
• Heat and UV protection. Always before a hairdryer or straightener, and a sun-protection product in summer.
• Moisture. A weekly mask and a leave-in treatment: well-moisturised hair holds colour longer.

When to go to the salon

If the yellow no longer goes away with purple shampoo, you need a fresh tone — toning. It is usually refreshed every 6–8 weeks, between lightening sessions. Colouring over blonde with box dye is not a good idea: on porous strands the result is often patchy and harder to correct. At BOSCO hair toning starts from 600,000 UZS and advanced colouring with blonde from 1,600,000 UZS; current prices are on our hair services page. If your hair is dry and brittle after lightening, consider deep hair restoration.