There's no shortage of enviable hair on Instagram, even if we do suspect it's largely down to filters and flattering lighting.
But the beauty trend lighting up social media at the moment is particularly eye-catching – striking glow-in-the-dark locks.
While the multicoloured look is often tagged under #glowinthedarkhair, as user Kasey O'Hara Skrobe (a US-based colourist with more than 60,000 followers) points out, it's usually not actually glow-in-the-dark colour, but neon shades that light up under black light.
While many rainbow 'dos can look a tad intimidating to recreate, the joy of this trend is its temporary nature – popular colours by American brand Manic Panic are semi-permanent, while there are wash-out hair gels available and plenty of UV dyes and products from UK brand Stargazer to create that eighties-clubber look by night and My Little Pony fun by day.
Take a look at some choice examples below.