Best for Oily Skin: SkinMedica HA5 Hydra-Collagen Replenish + Restore Hydrator "For anti-aging benefits, such as firming and wrinkle reduction, look for products containing peptides." And no matter which result you’re after—whether it’s firmer, bouncier, or simply more moisturized skin—antioxidants are never a bad idea. "For a quick hydration boost, opt for formulas with collagen," she says. Skin-care ingredients that can boost collagen production—and play well with topical collagen—include vi...