GHK Cu: A Peptide for Skin, Hair, and Healthy Aging Nick Sukay posted on the topic LinkedIn GHK Cu (Copper Peptide) has emerged as one of the most promising regenerative peptides for hair restoration due to its ability to stimulate follicular activity, improve scalp circulation, reduce inflammation, and prolong the This compound has been studied for over 50 years., Most people discovered it last year on social media., , In 1973, Dr. Loren Pickart identified GHK Cu, while studying why young blood could restore GHK Cu Hair Growth