Kourtney is every inch the yummy mummy, yet her skin shows no signs of tiredness or fatigue. So what's her secret?
Is she obsessed with the likes of La Prairie and Creme de la Mer? Or perhaps some other fancy, high-end product that the rest of us poor folk can only dream of?
Actually, no. This gorgeous Keeping up with the Kardashians star keeps it real when it comes to her beauty regime, sticking with vitamin E to nourish and protect her flawless skin.
"I've been using vitamin E oil around my eyes since high school," Kourtney says. "It's so nourishing."
Our spies tell us she loves using Dr Organic Vitamin E Pure Oil, £8.49, Holland & Barrett which is great for helping smooth fine lines and wrinkles.
It's also a cracker for soothing rough, dry patches, reducing stretch marks and hydrating sun damaged skin.
What's your skincare secret and why? Let us know below. Our fave comment across the site each week wins £50!