Here's a quick rundown: squalane and/or hyaluronic acid (HA) plump as well as hydrate, vitamin C protects against environmental stressors, peptides tighten, and retinol (also found in AHAs like ...

Sarah Bradley is a writer with six years of experience creating personal essays, reported features, and content related to health and parenting topics. Susan Bard, MD, is a board-certified general ...