Intense firming serum uses the power of milk for age defeat mpc concentrate is a simple but hugely potent milk extract packed with cytokines to leave your skin smoother firmer and rejuvenated a few little drops as part of your morning and evening routine will help stimulate connective tissue and strengthen the dermis the result is visibly younger looking skin to use apply a few drops of serum to just cleansed skin on the face and neck before moisturising