Ah, blonde. How many of us have dreamed of going blonde at some point — a passing whim or a lifelong yen, even when our natural colour is as dark as it comes? Some have taken the plunge and discovered a whole new face; others have kept the idea on the back burner, more sensible than diva at heart. I tried it myself — including one attempt I'd rather not see photographed again. So before you book, let's run through what's really ahead: the pigments, the timeline, the bill and the questions to ask so you don't leave disappointed.

Young mixed-race woman in a salon, a strand test clipped to her dark brown hair, natural light

Let's talk pigments, because that's where everything is decided. An appointment requested on a dark brown base often needs two sessions before you reach the shade you're after, and a colourist doesn't simply paint on colour: they neutralise whatever is unwanted, blue against orange, violet against yellow. Understanding that changes how you wait between appointments, and it stops you thinking the first pass was a failure.

Gloved hands applying lightening paste to sectioned roots
Sometimes two sessions are needed before you reach your target shade

Professionals work on a scale from 1 (black) to 10 (platinum blonde). Knowing where you're starting from prevents a lot of crossed wires: there's no point dreaming of instant platinum when you begin at a 2 — you can get there, but in stages, and without frying your hair.

Hand holding a colour swatch fan from black to platinum blonde
From 1 to 10, the scale that shows your starting point

Not all shades need the same upkeep. Ash blonde cools the colour, but it can quickly turn green if the yellow hasn't been properly neutralised. Golden tones are warmer and brighten fair complexions, though there's sometimes yellowing to watch. Platinum is the most demanding: long lightening, roots that need frequent retouches and hair put under real strain.

Woman with ash-blonde hair sitting by a window
Ash tones cool the colour, if they're properly neutralised

And the timeline? Regrowth starts to show after three to four weeks, and root touch-ups come round every four to six weeks. Add a weekly mask, a purple shampoo about every ten days — and plenty of patience.

Asian woman in a bright salon, hair sectioned into foils, calm atmosphere
Between appointments, patience is part of the result

To avoid leaving disappointed, ask your questions: 1. What level am I starting from? 2. How many sessions, and what budget? They head off a lot of disappointment, and a good colourist will answer them straight.

Bright hair salon, client in the chair during a colour application
A good colourist answers awkward questions straight

Then there's the third, and the most revealing: 3. What home upkeep will I need, and which specific products? A nourishing mask, a purple shampoo, an oil through the mid-lengths and ends — the answer tells you everything about how serious your colourist is.

Woman applying a nourishing mask through her blonde mid-lengths and ends at the basin
A weekly mask and an oil through the mid-lengths and ends: the ritual

And if you get an answer without a strand test or a quote, change chairs. A blonde that lasts isn't a stroke of luck: it's understanding your base, properly neutralised undertones and consistent upkeep. The rest is light — and that, you can treat yourself to.

Woman with freshly lightened hair walking down a sunny street
Blonde that lasts comes from understanding your base and keeping up the follow-through

The one step worth taking before a lightening appointment? Ask for a strand test — and, if your skin is reactive, a patch test. That way you see how your hair reacts before committing to colour, rather than discovering it afterwards.

Budget

On the budget front, UK salon prices vary widely, but as a rough guide expect around £70–£180 for lightening or balayage, and around £35–£80 for a root touch-up. What you pay depends on hair length and thickness, the technique chosen and the salon's reputation; in big cities, prices tend to sit at the top of that range. At home, a good purple shampoo and mask usually cost around £20 in total, and they're the kind of thing you'll buy again and again.