Kate Somerville Mega-C and Firming Serum - These have been used 2 times - basically full. My skin was sensitive to these products, so I am not able to continue using them. 1. Clinical-grade facial results at home? Oh yes! Our MEGA-C™ 30% Vitamin C Brightening Facial is formulated with a potent-yet-stable mega dose of 30% Vitamin C + our innovative Age Repair Complex + Sea Buckthorn Oil + Ceramides to take skin from lackluster to radiant in just 2 uses. The creamy, wash-off mask evens and brightens skin tone, boosts firmness and elasticity, fades hyperpigmentation, and softens the appearance of wrinkles + fine lines. 2. Put dull skin in your rearview with our clinic-grade KateCeuticals™ Firming Serum. You’ll see smoother texture and improved skin firmness within 2 weeks. The Tri-Peptide + Hyaluronic Acid Complex softens the appearance of fine lines and visibly minimizes even the deepest wrinkles. Botanicals like Nasturtium Flower + Mukul Myrrh Extract work to plump and smooth the skin’s appearance while strengthening the skin barrier.