Time for a September hair refresh? This expensive-looking, low-maintenance look is in for autumn 2026
Say goodbye to sun-bleached ends and hello to glossy, deepened colour
There's a moment every September when you catch sight of the back of your hair in a shop window and think: this needs to go. Mine came a few weeks ago - all sun-lightened ends, salt-crunched texture and highlights that had crept a shade too warm over a summer of holidays. It was time to dip my toe back into the 2026 hair trends for an autumn reset, and it turns out I wasn't alone in thinking so.
According to Polly Miteva, Senior Stylist at HARI's South Kensington, this is exactly the moment the hair world pivots. "The hair trend for A/W 2026 will involve achieving healthy, voluminous hairstyles, performed in different lengths and shapes to say goodbye to the beach waves of summer and welcome in the glossy blowouts of winter," she says. In short: the glam is back.
Polly's advice for getting there starts before you even sit in the styling chair. "After the long summer, the hair needs to be brought back to its best by using rejuvenating conditioning treatments, deepening the hair colour and, of course, a new hair cut." On the cut itself, she's seeing requests cluster around a few key shapes: face-framing layers, vintage-inspired fringes and the shoulder-length blunt bob. But the real headline trend, she says, is something more wearable day-to-day - "daring, bold hairstyles that are also easy to maintain at home," otherwise known as shaggy-chic.
Colour is doing just as much work this season as cut. Francesca Dixon, Senior Colourist at HARI's South Kensington, says the shift is all about warming things up without losing shine. "Summer is slowly saying goodbye, and autumn hair is bringing all the cosy vibes. Think honey blonde, golden beige, rich bronde, caramel ribbons, mocha brunette, glossy chocolate, soft auburn and muted copper - warmer, richer, shinier shades with loads of dimension rather than flat, dark colour." If you're not quite ready to let your summer blonde go, she suggests a middle ground: "honey-bronde or honey bronze is the perfect transition - still bright and glowy, but with that gorgeous autumn warmth."
My hair refresh, before and after
I booked in at HARI's South Kensington with Francesca on colour and Polly on cut and styling, and the difference is honestly the best argument I've seen for a proper seasonal reset rather than just a trim.
Before, my hair had that classic end-of-summer look - long, wavy, with high-contrast balayage that had lifted a little too bright against my natural base, especially through the mid-lengths. It looked fine loose on a beach, but under office lighting it read as slightly brassy and in need of a root melt.
Before and after Aleesha's autumn hair refresh
Francesca's approach was to deepen and soften rather than start from scratch - melting the balayage back into my natural colour so the regrowth line disappeared and the overall effect read richer and glossier, closer to the deep brunette and soft caramel tones she'd described. Polly then took the ends in slightly and blow-dried through soft, bouncy waves rather than the looser beachy texture I'd been wearing - the kind of "lush blow-dry" she'd mentioned pairs so well with the season's earthy colour palette.
The result, side by side, is a genuinely different hair era: the same length, but noticeably shinier, warmer and more polished, with none of the high-maintenance colour admin that balayage regrowth usually demands. That's the bit I'd flag as the real win of this trend - it looks like an expensive, considered colour appointment (because it is one), but once you're out the door, it's a wash-and-go blow-dry rather than a look that needs constant reinforcing with heat tools.
What to ask for
If you're taking this to your own colourist, the brief is simple: ask for your existing balayage or highlights to be melted or glazed back towards your natural base for a softer, less contrasty grow-out, in one of the warmer autumn tones - think caramel, bronde or soft auburn rather than anything ashy.
Pair it with a slightly blunter cut or face-framing layers, and a blow-dry that leans smooth and voluminous rather than tousled, and you've got the look Polly and Francesca are both pointing towards for the season.
How to maintain the results
Both Francesca and Polly were firm on one point: there's little sense in investing in a salon-quality colour and cut if your at-home routine works against it. Their advice is to put money into a good, sulphate-free shampoo, which protects colour far better than a budget alternative and keeps hair in better condition for longer between appointments.
Polly's reasoning comes down to the hair cuticle - if it's left too open, through heat damage, dryness or split ends, it releases colour molecules, meaning your carefully deepened shade fades faster and your ends end up looking dull regardless of how good the initial result was.
This was the first product on both their lists, recommended specifically to prolong colour between salon visits. It's sulphate-free, which matters most here - sulphates are the ingredient most likely to strip colour molecules out of the hair shaft with every wash, so switching them out is one of the simplest ways to protect a fresh colour result.
This is the moisture step - a mask designed to hydrate hair deeply enough to help colour last and keep ends in better condition, so they're less prone to splitting. Given Polly's point about open cuticles releasing colour, a proper weekly mask like this is doing double duty: softer, more hydrated ends mean less colour fade, not just a nicer feel.
For shine, this was the heat protectant they pointed me towards. My hair leans frizzy, and this is designed to keep it smooth and frizz-free for longer between washes, rather than just protecting against heat damage without doing anything for texture.
Another shine-and-protect recommendation from the team, this one's aimed at giving hair a glossy, reflective finish while shielding it from heat styling - useful if you're blow-drying regularly to recreate a salon finish at home and want the glass-like shine that comes with a fresh colour, without compromising the health of the hair underneath.
This was suggested specifically for making an at-home blow-dry last longer, so you're not restyling every day or reaching for heat tools more than necessary. It's designed to hold volume and shape through the blow-dry itself, meaning the finish should still be holding up two or three days on.
This one's my own addition rather than a Hari's recommendation, but it's what I reach for to recreate a smooth, salon-style blow-dry at home. Cutting down on straighteners day-to-day matters as much as any product for keeping colour and condition intact, and the Airwrap gets me close enough to a proper blow-dry finish that I'm not reaching for straighteners afterwards to deal with frizz or flyaways.
