Collagen in photoaged skin
Abdulghani et al. established that facial cream containing GHK-Cu increased collagen in photoaged skin in 20 female volunteers, performing better than vitamin C and retinoic acid.
Abdulghani AA, Sherr S, Shirin S, Solodkina G, Tapia EM, Gottlieb AB. Disease Manag Clin Outcomes. 1998;1:136-141.
12-week face and eye cream study
Leyden et al. reported significant improvement of skin laxity, clarity and appearance, skin density and thickness, and reduced fine lines and wrinkles compared with placebo. GHK-Cu eye cream performed better than vitamin K cream.
Leyden J, Stephens T, Finkey MB, Appa Y, Barkovic S. Amer Academy Dermat Meeting, February 2002, Abstract P68, P69.
12-week facial study, 67 women
Finkley et al. reported that GHK-Cu cream applied twice daily improved the appearance of aged skin, increased thickness, reduced wrinkles and stimulated dermal keratinocyte proliferation; the study found GHK-Cu non-toxic and non-irritating.
Finkley MB, Appa Y, Bhandarkar S. Cosmeceuticals and Active Cosmetics, 2nd ed., Marcel Dekker, 2005:549-563.
Published studies of GHK-Cu generally; they are not studies of Active Peptide products. Cosmetic ingredient — not intended to diagnose or treat any condition.