Kourtney is 42-years-old but looks much younger thanks to a healthy diet
And on Friday she shared what she drinks to keep her youthful glow
'First thing in the morning, before I eat or drink anything else, Blueberry Lemon Collagen,' she wrote
The Vital Proteins x POOSH mix has several ingredients
The first listed is bovine collagen which 'helps support skin elasticity'
She said it gives her a 'youthful appearance' as well as support for hair and nails
Also in the mix is Vitamin C which helps 'promote collagen production'
And popular Hyaluronic Acid 'helps support skin hydration'
That same day she discussed on POOSH what vegan meal choices she makes