Marie-Lyne Nault is an orthopedic surgeon and researcher specializing in pediatric sports medicine in Montreal
Animal studies suggest comparable efficacy (with GHK-Cu entering anagen slightly faster), but no large-scale human trial has compared them head-to-head
Explore more BPC-157 details, comparisons, and lab certificates BPC-157 product page Full protocol details, research summary, and what is included
Puri V, Nagpal M, Singh I, Singh M, Dhingra GA, Kampanart H, et al
Do Not Smoke and Limit Your Intake of Alcohol Tobacco and alcohol directly affect the skin and hinder glutathione production in the body, respectively
0.025-0.05% prescription tretinoin and 0.5-1% OTC retinol produce broadly comparable photoaging outcomes in head-to-head trials, though tretinoin acts faster