Going Brunette: A Colourist's Guide to Getting It Right

Brunette has a reputation as the easy option. Darker is simpler than lighter, the thinking goes, so it must be quicker, cheaper and lower risk. Half of that is true. The rest is why so many people end up with flat, muddy, oddly warm hair a month after going dark.

Brunette is a technical colour. It is the one where getting the tone wrong is most obvious, where fading is fastest, and where a bad decision is hardest to undo.

Why brunette looks flat and what fixes it

A single dark tint applied root to end gives you one colour at one depth. In direct light it reads as a solid block, because there is nothing in it for the light to break against. Real dark hair is never that. It has depth variation running vertically through it, and warmth that shifts as it moves.

Building that back means the same thinking that goes into blonde work: some pieces sit deeper, some carry a warmer ribbon, and the tone is not identical from root to end. The difference is that in brunette the range is narrower, so the placement has to be more precise. There is less room to be wrong.

The warmth in that kind of result is deliberate. Cool brunette without any warmth in it reads grey and ages the face. Warmth without control reads orange. The whole craft of brunette is the distance between those two.

Going darker is gentler, and that is genuinely good news

Depositing colour into the hair does not need to open the cuticle the way lightening does. If you have spent years as a blonde and your ends are tired, going brunette is one of the few colour changes that leaves your hair in better condition than it found it. The pigment fills gaps in porous hair and the strand behaves better immediately.

This is a real reason to do it, and it is worth saying plainly because most colour conversations are about what a service costs your hair. This one gives some back.

The catch: brunette fades, and it fades warm

Dark colour molecules are larger, and porous hair does not hold them well. If your hair has been lifted before, going dark means depositing pigment into a strand that has holes in it. It looks perfect on day one. By week three the cooler tones have washed out first and what is left is the warm base underneath.

That is the orange or red cast people complain about, and it is not the colourist mixing badly. It is the tone leaving in the order tones always leave.

1. Fill firstPorous or previously lightened hair gets a filler that replaces the missing warm pigment before the target colour goes on. Skip this and the colour has nothing to hold onto.
2. Apply the targetThe actual brunette, placed with depth variation rather than as one flat coat.
3. Seal and treatHair is left in a state where the cuticle closes down over the pigment.
4. Wash cool and less oftenEvery hot wash opens the cuticle and lets pigment out. This is the part you control.
5. Refresh the toneA gloss or toner appointment restores the tone without another full colour. Much shorter, much cheaper.

Almost every brunette that has gone brassy was not filled properly on the way in. The fade was decided at the first appointment, not at the third wash.

SEB DID THIS HAIR, Stepney

Blonde to brunette: the decision people underestimate

Going from blonde to brunette is easy. Going back is not. Once you have put dark pigment into lightened hair, getting it out means lifting again, and lifting artificial dark pigment is harder and less predictable than lifting your natural colour. It often comes out patchy and warm, and it takes multiple appointments.

This is worth sitting with before you book. Going brunette for a season and back to blonde by spring is not a plan, it is two rounds of damage. If you are genuinely unsure, there are options that get you most of the way dark while leaving a route back.

For a lot of people the second or third row is what they actually wanted. They want to stop being maintenance blonde, not to be dark. Those are different requests and they get different answers.

Brunette and your skin, honestly

Dark hair sits closer to your face than blonde does, tonally, so it has more to say about your skin. Cool, ashy brunette next to warm skin can drain it. Warm chocolate tones next to cool skin can look orange. This is not a rule you can look up. It is looked at in person, in the studio's natural light, before anything is mixed.

The face framing pieces do most of the work here. Keeping those slightly softer or warmer than the rest is often the difference between brunette that suits you and brunette that wears you.

Upkeep, and why it is less than blonde

The regrowth question mostly disappears. If your natural base is dark, brunette grows out invisibly, which is the single biggest practical reason people switch. What you are maintaining is tone, not root.

In practice that means a gloss or toner every few months and very little else. Starting points for going brunette, toners and treatments are on the service menu, and the service is set out on the brunette page.

• Wash in cool water. This matters more for brunette than for any other colour.
• Skip clarifying and detox shampoos unless you are told to use one. They strip tone fast.
• Heat protect. High heat oxidises dark pigment to warm.
• Book the gloss before the fade bothers you rather than after.

Brunette work in Stepney

SEB DID THIS HAIR is a single chair studio inside SPAZIO creative at 132 Payneham Road, Stepney, a short drive east of the Adelaide CBD. Brunette work is often a long appointment when there is history in the hair, and a single chair means that time is yours. Weekend appointments start at nine.

The shades people mean when they say brunette

Brunette covers an enormous range, and the word on its own gives a colourist almost nothing to work with. Being able to name what you actually want saves a lot of back and forth.

The ash and mushroom end of that table is where most disappointment lives, because it requires actively fighting the warmth that hair wants to return to. It looks extraordinary for two weeks and needs the most upkeep of any brunette. That is worth knowing before you choose it rather than after.

Brunette on grey

Covering grey with brunette is a different technical job again, and it is one where the flat result people complain about is most likely to happen. Grey hair has no pigment in it at all, so it takes colour differently from the hair around it, and it is often more resistant, meaning it needs longer or a stronger formula to take at all.

The result of ignoring that is a solid, opaque block of colour that covers perfectly and looks nothing like hair. The way around it is the same principle as everywhere else in this guide: build depth variation in deliberately rather than applying one tone everywhere, and accept a small amount of visible warmth so the colour has somewhere to sit.

Shine, and why brunette shows it most

Dark hair reflects light in a way blonde cannot, which is why a good brunette reads as glossy and a mediocre one reads as flat and dusty. The shine comes from the surface of the hair being smooth enough to reflect evenly, so anything that roughs up the cuticle costs you the thing brunette is best at.

That makes gloss treatments and cool rinses disproportionately valuable here. It also means brunette punishes damage more visibly than blonde does: porous, roughed up ends on a dark head look dull and grey rather than just lighter.