And looking at the ex-Pussycat Doll's skin, her must-have product is obviously working...
So what's her secret? None other than good old Australian Bodycare Tea Tree Oil, £5.99, australianbodycare.com.
"Dab it on with a clean finger or cotton bud a few times a day, then leave it to heal overnight," explains Kimberly.
Kimberly is pretty knowledgeable when it comes to beauty as she has her very own, cruelty-free make-up range, Beautiful Movements.
She's also used to being plastered in make-up for her TV duties as a Got To Dance judge, so is well aware that a great skincare regime is vital if you want to keep your complexion clear, clean and spot-free.
So it's no surprise that Kimberly uses tea tree oil to nip zits in the bud – it's totally natural and well known in beauty circles for is its antibacterial, antiseptic, anti-fungal and anti-viral properties.
Yes, we know it doesn't sound very glamorous, but who cares? It obviously works!
What's your best tip for blemish-free skin? Let us know below – our fave comment across the site each week wins £50!