Medik8 red alert serum provides intensive calming relief for redness and flare ups caused by skin hypersensitivity helps the skin combat daily environmental stress improves the lipid barrier of the skin and visibly reduces the signs of skin ageing medik8 red alert serum contains teprenone which reduces the appearance of blood flow to facial skin leading to a less flushed complexion there is no stronger topical formula for cosmetically managing skin redness