REN Skincare - Perfect Canvas Serum 30ml REN Skincare - Perfect Canvas Serum 30ml The latest must-have addition to your makeup collection, this wonder primer from the experts at REN has been all over the pages of the beauty press, and it's easy to see why. REN's Perfect Canvas Clean Primer is a silicone-free serum full of bio-actives. The ideal step for your skin after using your favourite moisturiser, it creates the perfect smooth, lifted and naturally-filled canvas for applying your favourite BB cream or foundation. *Please note REN are currently updating some of their product packaging. Packaging of this product is subject to variation from the visual shown.