Check out the NEOGEN - Probiotics Double Action Serum, featuring two separate formulas to hydrate, nourish, and calm any dry or irritated skin. Formulated with probiotics and prebiotics, the Probiotic Serum delivers optimal acidity to help smooth wrinkles and creases while hydrating with hyaluronic acid and glycerin. The Pro Barrier Action Serum helps calm any inflamed skin and delivers ceramides and peptides to brighten and strengthen the skin. The formulas can be mixed together for a synergystic effect but can be used separately for unique skin situations.