Treat and conceal blemishes with bioderma sebium global cover a high coverage tinted treatment for acne prone skin bioderma sebium global cover acts on the cause of spots and blackheads with seborestore technology a new generation fluidactiv patent this technology rebalances the skins sebum levels helping to restore its protective functions and stop blemishes from forming sebium global cover also works to reduce the appearance of existing spots and blackheads thanks to a combination of