Synergy of GHKCu and hyaluronic acid on collagen IV upregulation via fibroblast and exvivo skin tests Jiang 2023 Journal of Cosmetic Dermatology Wiley Online Library How Often Can You Get a Glutathione IV Drip? Uplift IV Wellness Some people notice their skin looks worse before it improves with GHK Cu. This temporary phase is often called the copper uglies., #skincare, #ghkcu, #skinhealth, #longevity, #peptides The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline