Blue Peptides Uplift Night Cream: Discover the secret to visibly firmer skin and a healthy, radiant complexion with Biotherm's Blue Peptides Uplift Night Cream—a cream from the new Blue Peptides range. The formula is based on the latest discoveries in biological science and combines living plankton with collagen peptides to stimulate collagen synthesis. The increased collagen content gives your skin the structural support it needs to appear firmer.