From a foundation hack that promises the best skin of your life to creating curly/wavy hair with your bathrobe belt, TikTok is filled with clever hacks and tricks.

One that recently gained traction on the social media platform is the #PurpleShampooChallenge. The challenge is thought to have been first done by Abby Kovi (@makeupbyabbyk), who posted a video showing her apply purple shampoo to her blonde hair. After washing it out, her hair has been lifted to a bright, platinum blonde.

The video has amassed a staggering 24 million views and kicked off a trend – #PurpleShampoo currently has 234.6 million views across TikTok and #PurpleShampooChallenge is on 29.1 million.

The TikTok purple shampoo challenge has gone viral, but it only works for one hair colour