Boost collagen, firm skin, and support your barrier in one fell swoop. When it comes to antiaging skin care products, few are as highly regarded as the hardworking, concentrated formulas in the best peptide serums. Peptides have collagen-stimulating and skin-smoothing benefits, and while different types serve different functions, they all have the same origin story.
As Tiffany Libby, MD, a board-certified dermatologist in NYC, explains, peptides are short chains of amino acids, which act as the building blocks of proteins and help with processes such as cell signaling, tissue repair, and collagen synthesis. Those essential cellular tasks help improve everything from skin elasticity to hydration (more on that later). So, adding a peptide-packed antiaging face serum to your skin care routine is a great way to improve loss of firmness while boosting the skin’s ability to repair itself from free radical damage.
They’re gentle enough for sensitive skin types, but heavy-duty enough to see practically immediate results. Here, we tested dozens of popular formulas on the market (from TikTok-viral K-beauty serums to tried-and-true drugstore options) to determine which ones were worthy of earning a place in our daily skin care routine. Our top pick, the Biossance Squalane + Hyaluronic Acid Copper Peptide Rapid Plumping Serum, has a gentle gel-like formula that instantly plumps skin.
If you’re looking for something that’s easier on the wallet, the L’Oréal Paris Revitalift Tri-Peptides Age-Defying Serum packs a punch at an affordable price to help fill wrinkles and soften creases. We also found options for oily, dry, and mature skin, so there’s a peptide pick for everyone on this list. Our top peptide serums Best Overall: Biossance Squalane + Hyaluronic Acid Copper Peptide Rapid Serum, $69 Best Firming: Medicube PDRN Pink Peptide Serum, $19 Best for Mature Skin: L’Oréal Paris Revitalift Tri-Peptides Age-Defying Serum, $20 Best for Dry Skin: Dr.Reju-All Advanced PDRN Copper Peptide Serum, $25 Best for Sensitive Skin: Medik8 Liquid Peptides Advanced MP, $95 What we love: What could improve: Hydrates dry patches but keeps an oily T-zone matte Pricey Cooling and refreshing upon application Sticky in texture This aquamarine serum takes the peptide crown because we found it to do an amazing job lifting facial contours, softening skin, and minimizing uneven texture.
It’s also a favorite of Dendy Engelman, MD, a board-certified dermatologist based in NYC. It contains copper peptides for bounce, paracress extract for a tightening effect, and squalane to keep the skin moisturized without feeling heavy,” she says. The consistency is a thick, blue gel that disappears into skin once massaged in.
It’s a tad sticky at first, but don’t let that scare you off—it blends down after a few seconds and leaves skin fresh, plumped, and ultra-hydrated. If you’re not a big fan of shine, you’ll love that this won’t make you overly dewy either—instead, you’ll have a lit-from-within glow. What we love: What could improve: Helps boost elasticity and corrects dark spots Some might find it a bit sticky Bouncy serum is fun to apply May pill if you use too much You’ve probably seen this TikTok-viral Korean serum on your FYP (influencers are obsessed with it), and it’s one of the rare trendy products that is worth the hype.
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