THE FIRST LIP SOLUTION WITH RETINOL : A new paradigm lip serum with high-efficacy skincare ingredient retinol. AmorePacific, the parent company of Primera, launched its first retinol product in 1997, stabilizing pure retinol through constant research and new technology development over 30 years., NON-SPICY REAL VOLUMIZING : The more you use it, the more bouncy it makes your lips plump with volume. Lip volume increased 7.8% immediately after use, lip volume increased 14.7% after 2 weeks, and lip volume increased 15.7% after 4 weeks, NATURAL MOISTURE PLUMPING : Plant-derived collagen and high-density gel are firm and glossy, creating a natural and hydrating plumping effect. Experience moisture and firmness that lasts long enough just using it once or twice during the day, rather than applying it 10 times a day., TWO COLOR SHADES : 1) Bare : A clinically proven, non-sticky lip treatment that delivers the intense plumpness of a lip 2) Rosy : A clinically proven, non-sticky lip treatment that delivers the intense plumpness of a lip, Mute pink that suits everyone with a shiny and soft glow, FAQ : Can people with sensitive skin use it, too? It has passed the Sensitive Lip Test. However, If you feel that your skin is sensitive , it is recommended to adapt and use it. (once every 2-3 days → once a day → several times a day)