Luxe Lip Plump Hydrating Peptide TherapyWhy We Love It What's the difference between a lip plumping serum like this and a plumping lip gloss? While plumping lip glosses rely on surface level tingling to create a temporary swelling effect, Luxe Lip Plump Hydrating Peptide Therapy works deeper. This serum like treatment uses skin repairing peptides and rich hydrators to improve lip fullness, reduce lines, and soften the delicate skin on and around your lips over time. Key Ingredients: