Novel strategies for medical management of obesity: mechanisms, clinical implications, and societal impactsa report from the 25th Annual Harvard Nutrition Obesity Symposium The American Journal of Clinical Nutrition Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Skin Restoration: Prioritizing Safety Over Trends