Topically applied GHK as an anti wrinkle peptide: Advantages, problems and prospective GHK Cu Peptidos Collagen Cross Links as a Determinant of Bone Quality Musculoskeletal Key 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
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