Peptide cosmetics are topical products formulated with short chains of amino acids. Copper peptide products, often labelled GHK-Cu, are commonly explored in routines focused on the appearance of skin and hair.

When comparing serums, begin with the complete ingredient list, stated concentration, container size and directions. Concentration figures are not always presented on the same basis, so avoid comparing percentages without reading the accompanying product information.

Patch testing is a sensible first step with any new topical product. Apply a small amount as directed and watch for irritation before expanding use. Adding one product at a time also makes it easier to identify which formula suits the routine.

More is not necessarily better. Follow the stated frequency and avoid layering multiple strong or unfamiliar active products at once. Daily sun protection and a consistent basic skincare routine remain important foundations.

Cosmetic products are not intended to diagnose or treat a medical condition. Persistent scalp, hair or skin concerns should be discussed with an appropriate healthcare professional.