But that doesn't make life any easier when it comes to mixing things up for the grid - so many days of the week, so few hairstyles to chose from, y'know? (although clearly no one's told them how quick and easy a scruffy top knot is...)
It's no surprise the sisters are often forced to take inspiration from one another when it comes to their hair. Case in point: Kendall took to instagram last week with new wavy, light-brown, highlighted hair, and we couldn't help but notice the resemblance to Kylie's own highlighted waves.
Then there was the time Khloe channelled Ariana Grande with '90s pigtails, and Kylie did exactly the same only days later (although it's not the first time Kylie's experimented with pigtails, to be fair).
Well, it's Kim Kardashian's turn to get all matchy-matchy with her sisters, because when she took to instagram this week to announce the launch of her new 40th birthday Opalescent makeup collection, her hair couldn't have been more Kylie if it tried.
Kim's dark, glossy locks were pulled into a high ponytail, which reached her waist in a chic ringlet, and it looked almost identical to a look her sis Kylie wore only days before to attend Cardi B's birthday celebrations.
With a Kardashian-Jenner hairstyle, it's always tricky to know who wore it first (classic chicken-and-egg scenario), but hey, what does it matter when the end result always looks sooo good?
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