Hair Colouring Explained: Balayage, Highlights, Root Tint & More
TL;DR: Hair Colouring Made Simple
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Covering grey roots → Root tint
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Changing your overall colour → Full head colour
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Adding brightness and dimension → balayage or Highlights
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Prefer low maintenance, softer grow-out → Balayage
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Want brighter, more defined colour from the roots → Highlights
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Just refreshing visible areas → T section
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Less commitment, more shine → Semi or tone on tone colour
Still unsure? Book a free consultation. That’s where the real decision happens. Otherwise, keep scrolling for the full guide.
Hair colour language can sound far more complicated than it needs to be. Permanent. Semi-permanent. Root tint. Full-head colour. Balayage. Highlights. T-section. If you do not work in a salon every day, it is very easy to book the wrong thing and only realise halfway through the appointment that you and your hairdresser were picturing two completely different outcomes.
The simplest way to understand it is this: some services change your overall base colour, some brighten selected pieces, and some are just smarter maintenance versions of something you already have. That is exactly why our colour guide starts with your goal rather than with jargon.
Permanent vs semi-permanent
Permanent colour is the longest-lasting option. It is the right choice when you want proper grey coverage, a deeper overall change, or a colour shift that will hold better over time. Professional guidance usually puts permanent colour in the rough zone of six to twelve weeks before fading becomes obvious, depending on the shade, condition of the hair and your home routine.
Semi-permanent colour is the lower-commitment cousin: it usually coats the hair more gently and fades faster, often over roughly ten to twenty washes. You may also hear salon language like “tone-on-tone”, “gloss” or “demi-permanent”, which generally sits between the two: more staying power than a true semi, softer regrowth than a permanent, and often used for shine, tonal correction or a softer blend.
Root tint, or regrowth, for maintenance
A root tint, or regrowth tint, does not mean “full colour again from scratch”. It means targeting the new growth only. That makes it the practical option when your mids and ends still look good but your roots are giving the game away.
On our public colour guide, root or full-head tone-on-tone is one of the go-to answers for grey coverage, with the warning that maintenance is regular and a top-up is usually needed about every four weeks. In plain English: a root tint is for keeping things fresh, not reinventing your whole colour story every single appointment.
Full-head colour, or all-over colour
A full-head colour is exactly what it sounds like: one colour applied across the whole head. On our service page, we describe it as single-process or all-over colour, and it is the best fit when you want to go several shades lighter or darker than your natural base, add warmth, darken evenly, or cover a more significant amount of grey. It is also especially useful on shorter hair, where highlights may not show in the same soft, dimensional way they do on longer lengths.
Full-head colour can be temporary, tone-on-tone or permanent, but whichever version you choose, the reality is the same: because your hair keeps growing, you should expect maintenance around every four to five weeks if you want it to stay polished.
Highlights for dimension, brightness & contrast
Highlights are about lightening selected strands rather than changing the whole base. They are brilliant when you want dimension, brightness and contrast. They can be ultra-fine and subtle, or more obvious and brighter, depending on how much contrast you want and how the sections are placed. Our highlights page explains the two main routes clearly: hand-painted placement or the more traditional foil method.
Foils are the classic choice when you want precision and a cleaner, brighter lift from root to end. Full-head highlights generally need more maintenance than balayage because the regrowth line shows sooner; as a rule of thumb, most people refresh them around every eight to ten weeks, with smaller in-between refreshes possible sooner.
Balayage for a more natural, blended result
Balayage is still a highlighting service, but it behaves differently. Instead of neat, root-to-end foils all over, colour is hand-painted to create a softer, more natural, more blended result. Our dedicated service page describes balayage as a low-maintenance freehand technique that adds lightness and shine while growing out more softly, which is exactly why so many people prefer it if they do not want to live at the salon.
We usually advise a top-up around every twelve weeks. So if highlights are for clients who want extra brightness and structure from the roots, balayage is for clients who want their colour to look expensive for longer without a harsh “book me now” line at the scalp.
T-Section: maintenance for highlights
A T-section is the quick refresh option. Instead of colouring the whole head, it focuses on the most visible areas: the parting, crown and hairline, which create that “T” shape when viewed from above. That makes it ideal between bigger highlight appointments, or for clients who mostly wear their hair down and mainly want the visible top sections to look fresh again.
T-sections are typicallys lower-maintenance and more affordable than a full head because they cover less hair. Be aware that most salons do not automatically include a toner in the price of a t-section as it's not always required.
Hair Colouring Wrap Up
So which service should you choose? If your main goal is covering grey roots, book a root tint or regrowth service. If you want an all-over change, more uniform depth, or a proper jump lighter or darker, go for full-head colour. If you want brightness and dimension without changing everything, highlights or balayage are the answer. Choose highlights if you want more lift and impact from the root; choose balayage if you want a softer, more natural grow-out and less upkeep. Choose a T-section if you already love your colour and just want the visible bits refreshed without committing to a bigger colour appointment. If you want more shine, softer tone and less commitment, ask about a semi-permanent or tone-on-tone route instead of jumping straight to permanent.
And one final thing, because this bit matters more than the fancy words do: never be shy about booking a consultation first. Our public pricing and service pages are built around consultation for a reason. Colour is not just about what looks nice on Pinterest; it is about your base colour, previous colour history, grey percentage, maintenance tolerance, budget and how much change you actually want to live with on a Tuesday morning. A patch test may also be needed if you are new to colour or have had reactions before, because even beautiful hair is not worth an allergic drama.
If you are still unsure, that is normal. Good colouring should feel exciting, not like an exam. Bring photos, bring questions, and tell us honestly how much maintenance you can be bothered with. That is usually the point where the right service becomes obvious.