After 9 years of research into enamel erosion regenerate enamel science present the boosting serum kit specifically made to maximise the effects of their unique advanced toothpaste by up to 43 the boosting serum is formulated with an innovative blend of nr 5 ingredients which when blended with the activator gel help to restore the enamels natural mineral content meaning the effects of the advanced toothpaste are enhanced even further designed to be used for 3 consecutive days every mon