Ciate London Vitamin Boost Plumping Primer Advanced Moisture Complex Serum-Primer Brand new in box never used Full size How to use Apply a small amount of the Ciate London Vitamin Boost Plumping Primer as the first step in your makeup routine, after you have applied your skincare. The primer works to boost the benefits of your skincare whilst prepping and priming the skin. Apply with the tips of your fingers for an even application.