Innovative serum that doubles as a primer This innovative serum is designed for all skin types to moisturiser, smooth over fine lines and wrinkles and provides a base for make-up. Thus, REN's Perfect Canvas is the ultimate "shortcut" to smoother skin. The silicone-free serum is rich in organic active substances that smooth, firm and provide a matte finish. A perfect canvas for make-up application. Application: Follow with a few drops after moisturising and gently massage into the skin until the serum is fully absorbed. Apply your make-up thereafter.