Hydrating, Prevents Feathering, Retexturizing A colour-free base to wear under lipstick. Adds light moisture, smoothes and refines the lips. Improves the appearance of applied lip products. M·A·C Prep + Prime Lip is America’s #1 Lip Primer. ALL BENEFITS ---> Reduces lipstick feathering ---> Provides immediate hydration ---> Oil-free ---> Dermatologist tested Brand new in box. Full-size. Authentic.