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Copper Peptides Promise Firmer, Bouncier Skin—a Dermatologist Shares What They Actually Do

Summary by Real Simple
Consider them an extra, not an essential.After 20-plus years of interviewing beauty experts, I consider myself pretty fluent in skincare. But every so often, a buzzy new ingredient makes me feel like I need a PhD just to decode the label. Thankfully, I have a Rolodex full of brilliant dermatologists who can help me separate promising science from clever marketing. Peptides are everywhere right now—from injectables and nasal sprays to scalp treat…

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E! News broke the news in Universal City, United States on Friday, October 2, 2026.
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