Copper Peptides Serum is a lightweight facial serum built around copper peptides — one of the more genuinely researched ingredients in complexion-focused skincare.What copper peptides areA peptide is a short chain of amino acids — a fragment of a protein. Copper peptides are those chains bound to a copper ion, the best known being GHK-Cu, a naturally occurring complex found in human plasma.Interest in them comes from wound-healing research, where copper peptide complexes were studied for their role in skin repair signalling. Cosmetic formulation took the ingredient from there. It is one of the few skincare actives with a mechanism that predates its marketing rather than the other way round.Copper peptides are not collagen peptidesThese get confused constantly, including by people selling them. Collagen peptides are typically ingested and are fragments of collagen protein. Copper peptides are applied topically and are signalling molecules. Different ingredients, different routes, different purposes — we set it out in copper peptides vs collagen peptides.Specifications Copper peptide-based formula Lightweight, fast-absorbing texture Suits a daily AM or PM routine How to use itApply a few drops to cleansed skin before moisturiser, morning or evening. Let it absorb fully before your next layer.Questions people askCan I use it with vitamin C or retinol?Copper peptides and direct-acid vitamin C are generally kept apart — use them at opposite ends of the day rather than layering them. Retinol at night and peptides in the morning is a common and workable split.How long until I see anything?Skin turnover takes roughly four weeks, and visible change from any topical active realistically takes eight to twelve. Take a photo now in consistent light.Is it suitable for sensitive skin?Peptides are generally well tolerated, but patch-test on your inner forearm for two days before applying to your face.Should I use this or the collagen ampoule?Different jobs. The Deep Collagen Silk Peptide Ampoule leans toward hydration and plumping; this serum leans toward tone and texture. Some people use both, at different times of day.Where this sits in our rangePart of Skin & Beauty.Patch-test before first use. Avoid contact with eyes. Discontinue use if irritation occurs. For persistent skin conditions, see a dermatologist.
