In the past few months, Kim Kardashian has changed her hair color more times than we can count. And though she’s recently returned to her signature brunette locks, marking the end to her colorful hair journey, that doesn’t mean that she can’t impart the wisdom that she’s learned over the past year—including, her easy hack to change your hair color in one shower.

On a post on her website and app titled “My Hair HackT,” the 37-year-old reality star broke down the quick, 20-minute hack she used to lighten her hair and completely changed its shade. Slightly tired of her neon-pink hair, the “Keeping Up with the Kardashians” star mashed vitamin C tablets (specifically, Bronson’s Vitamin C Ascorbic Acid) and combined them with her shampoo.

After leaving the concoction on for 20 minutes, sort of like a DIY hair mask, Kim washed it out and discovered that her hair was lighter and transformed into a gorgeous baby pink. Though the crushed-up vitamin C didn’t make her hair blonde like she hoped (you’ll likely need something stronger for that), she was still pleasantly surprised with the pale-pink color that her hair turned into in the shower.

“I wanted to fade my hair from a bright pink to a baby pink. I bought acidic vitamin C tablets, crushed them up and then put the powder into my shampoo,” Kim wrote. “I left the shampoo on my hair for 20 minutes and rinsed. I was hoping my hair would eventually turn back to blond, but it left my color a slight pink tone, which I ended up loving!”

MORE: Khloé Kardashian Slammed for Giving Tips on How To Look ‘Thin AF’ in Photos

Source: Instagram

MORE: How to Remove (Some) Hair Color At Home

Though vitamin C does a solid job at gently stripping away hair dye, leaving you with a lighter shade than before, it’s not entirely side effect-free. Vitamin C and ascorbic acid are known to dry out your hair and scalp, so if you do choose the DIY route, be sure to follow up your at-home bleaching with a nourishing and hydrating hair mask to put back in that moisture that you lost. We can never get enough of the Kardashian-Jenners’ beauty tips, but as always, proceed with caution.