Ihave a confession: despite spending my days writing about the latest innovations and trending products in beauty , I had no idea what glycolic acid was until two weeks ago. Turns out, it’s a powerhouse ingredient when it comes to haircare . As the smallest alpha-hydroxy acid (AHA) around, it’s able to penetrate hair fibres and laminate cuticles to provide serious gloss. In short, it’s a saviour for tired strands.

And whilst beachy waves will never officially be ‘out’, glossy hair is set to be a dominating trend in 2026 – just ask Hailey Bieber , Maya Jama and Sydney Sweeney . When our favourite It-girl celebrities start rocking new textures, it’s only natural that we follow suit. But how can you achieve glossy hair like the ‘dos currently dominating the red carpet?

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