Bleaching

From dark to blonde hair: how it works

It is one of the changes people dream about the longest, and also the one that most often calls for patience. Here is what the process looks like in practice, and how we keep the hair healthy along the way.

Colour bowl with brush and comb beside hair samples from dark brown to blonde

Colour does not lift colour

It is the most important sentence in the whole process. If your hair is coloured dark, a lighter colour cannot remove the dark pigment – it has to be lightened, either by bleaching or by a colour removal if the issue is a build-up of colour.

That is why we always ask what has been put on your hair before: box colour, henna, old highlights or a full colour all behave differently when lightened over.

The hair passes through its underlying pigment

All hair contains warm pigment beneath the surface. As it is lightened, that pigment appears in sequence: dark hair goes from red to orange, on to yellow and finally to a pale, light yellow that can be toned cool.

How far we can go in one session depends on the strength of the hair – not on how much time has been set aside. If the hair is not ready to go all the way in one day, we stop, tone it beautifully and continue at the next visit.

The toner creates the shade you showed us

The bleaching itself rarely creates the finished colour – it creates the light base. The shade comes from the toner on top: pearl, beige, icy blonde or a warmer honey tone.

The toner fades over the weeks and is therefore what most often needs refreshing between treatments. That is normal, and it does not mean the bleaching has to be redone.

How we look after your hair

We assess the elasticity and condition of your hair before we lighten it, and we adjust accordingly. A Metal-DX treatment can be added alongside the colour for DKK 99 and helps protect the strength of the hair during the process.

At home it is about going easy on hot tools, using a moisturising mask weekly and washing less often. Blonde hair that is dry looks more brassy than it really is.

  • Come with clean, but not freshly washed hair
  • Tell us about everything that has been on your hair – including box colour
  • Set aside plenty of time: a bigger lightening takes several hours
  • Expect the shade to need refreshing between treatments

Considering partial lightening instead?

If you would like to go lighter but without the heavy upkeep, babylights, highlights or a balayage are often a better choice than full bleaching. You get the light around your face and through the lengths, but keep a deeper base – and the regrowth is far softer.

At a colour consultation we can weigh the two routes against each other and look at what your hair and your everyday life can best carry.

Questions & answers

Frequently asked questions

Can I go blonde in one session?

It depends on what is already in your hair and how strong the hair is. Virgin hair can often get a long way in one session, while dark-coloured hair typically needs several treatments in order to stay healthy.

Why does my hair turn orange when it is lightened?

Because the warm pigment beneath the surface appears in sequence – red, orange, yellow. Orange is a step along the way, not a mistake; the toner on top neutralises it.

How often does blonde hair need toning?

The toner typically fades over six to ten weeks, depending on how often you wash your hair. Many people have a toner halfway between the bigger treatments.

Dreaming of going lighter?

Start with a colour consultation at Lumé by Trine – you will get an honest answer on what your hair can carry and how many steps it will take.