A Nourishing Serum: Biossance Squalane + Copper Peptide Rapid Plumping Serum Add a dose of hydration into your skin-care routine during the wintertime with the Biossance Squalane + Copper Peptide Rapid Plumping Serum ($68). It's got three types of hyaluronic acid, copper peptides, and squalane to plump the skin for a youthful glow. Image Source: sephora.com Biossance Squalane + Copper Peptide Rapid Plumping Serum $68 from sephora.com Buy Now