Gly‑His‑Lys (GHK) is a naturally occurring tripeptide renowned for its regenerative, anti‑inflammatory and copper‑binding properties, making it a cornerstone ingredient in cosmetics, pharmaceuticals and nutraceuticals. The Gly‑His‑Lys market size reached approximately $215 million in 2025, and the growth outlook projects a CAGR of 7.2% through the 2026‑2033 market forecast, driven by rising consumer demand for anti‑aging solutions, expanding clinical research on wound‑healing applications, and increasing incorporation of peptide‑based actives in functional foods. Key forces shaping the industry include rapid technological advances in peptide synthesis, tightening regulatory scrutiny on bioactive ingredients, and intensifying competitive pressure as major cosmetics and biotech firms expand their peptide portfolios. North America remains the largest market, while Asia‑Pacific is emerging as the fastest‑growing region, buoyed by escalating skincare spending and supportive biotech ecosystems.