A regrowth colour treats only the new hair at your scalp. A global colour treats the whole head, root to tip. Most people booking colour maintenance need the first one. And a good number of the colour problems we see come from having had the second one too often.
Here is the difference properly, because it decides both the health of your hair and what you pay.
Why “just do it all” is usually the wrong instinct
It feels thorough. It is not.
Colour that is already in your mid-lengths and ends does not disappear, it stays in the hair. Every time fresh colour is applied over the top of it, you add more pigment to hair that already has some. Do that repeatedly and the ends get progressively darker, denser and flatter than the roots, which is the opposite of what anyone is trying to achieve.
That build-up is also why some hair goes muddy or dull over a year or two of colouring and nobody can quite explain why. It is not the brand. It is repetition.
There is a second reason too. Hair at your scalp is new, undamaged and warmed by your head, so it processes differently to hair that is a year old and has been through heat, sun and previous colour. Treating those two as one thing gives you an uneven result even when it is applied perfectly.
What a regrowth colour actually does
Colour is applied only to the new growth, meeting the existing colour without travelling far past it. The aim is that you cannot see where one ends and the other begins.
This is the maintenance appointment. It is what most colour clients need most of the time, and it is deliberately the smaller service. Less product on your hair, less time, and less cost.
What it will not do: it will not fix faded ends, it will not change your overall shade, and it will not lift colour that is already there. It maintains what you have at the root. That is the whole job.
What a global colour actually does
Colour is applied through the whole head. It is the right service when you are genuinely changing something. Going darker, changing tone across the board, or bringing a head of hair that has drifted in several directions back to one place.
What it will not do: a global colour cannot lift colour out of previously coloured hair. This is the single most common misunderstanding in colour. Permanent colour deposits pigment; it does not remove pigment that is already there. Going lighter than your existing colour is a lightening service, and that is a different conversation with a different set of risks.
The option most people don’t know exists
The choice is not actually two things. It is three, and the third is the one that keeps hair in good condition over years.
If your roots need doing but your ends have gone flat or faded, the usual professional approach is a regrowth application plus a short refresh through the lengths at the end. A gloss, a toner, or a gentler formulation left on for a fraction of the time. It revives tone and shine without loading full-strength colour onto hair that does not need it.
This is why the honest answer to “regrowth or global?” is often “regrowth, with something on the ends”. Ask about it. It is the difference between hair that looks better each year and hair that slowly goes flat.
A quick way to tell which you need
Signs you need a regrowth colour: there is a visible line at your scalp, your mid-lengths and ends still look even, and you are happy with your current shade.
Signs you may need a global colour: you want to change shade, your colour has genuinely faded through the lengths rather than just lost shine, or your hair has ended up in patches from several different services over time.
Signs you need a conversation instead: you want to go lighter, you have used box colour, your hair is breaking, or the words “colour correction” have come up before. None of those are a booking decision made from a webpage.
Why we ask about your colour history
It can feel like an interrogation. It is not. What is already in your hair determines what can be done to it. Old permanent colour, henna, box colour and previous lightening all change what the next service will do, and they are not always visible.
A stylist who does not ask is guessing. Telling us everything, including the box you used in 2019, is how you avoid an unpredictable result.
When the honest answer is not today
Sometimes hair needs strengthening before it needs colouring. Hair that is already fragile, mid-way through a correction, or breaking is not improved by another chemical service on top. And we would rather tell you that and reschedule than get a result that costs you your ends.
Talk it through
Which service you need depends on what is in your hair, what condition it is in, and where you want to get to. That is a five-minute conversation and it usually saves money rather than costing it.
Our salon is in Murarrie, close to Cannon Hill and Morningside. You can read more about our regrowth and global colour services or book a consultation.