Base: Hydrates all day. Helps strengthen skin's moisture barrier, so more moisture stays in. Slips on easily, absorbs quickly. Protects against skin-damaging pollution.ACTIVE CARTRIDGE: Japanese Angelica Root helps even tone and brighten. Custom-Blend Chemistry Technology isolates the concentrated actives in the cartridge from the Base—delivers optimized results with every pump by freshly combining the precise dose of concentrated actives and Base for the ultimate customized experience. International patent-pending package.