Catenin Controls Hair Follicle Morphogenesis and Stem Cell Differentiation in the Skin: Cell Catenin Controls Hair Follicle Morphogenesis and Stem Cell Differentiation in the Skin: Cell In an adult with pattern hair loss or diffuse thinning and no known copper allergy, what is the recommended firstline topical peptide (copperpeptide, GHKCu) regimen? GHK CU, PTD DBM, Zinc Thymulin for Healthier Hair The answer starts with your genetics. That's the blueprint. It helps guide what your hair needs, so you're not guessing. When you have that foundation, you can support your routine the right