That point is important because the results should not be read as medical advice to begin drinking five large coffees every day
The presence of even small amounts of an impurity can significantly alter a substance's melting behavior

Benefits (Research Focus) Fibroblast activation studied for stimulating fibroblast proliferation and dermal matrix protein synthesis Collagen pathway research investigated for Type I and Type III collagen synthesis and glycosaminoglycan (GAG) production endpoints Angiogenesis explored for VEGF expression and new blood vessel formation in healing tissue models Hair follicle biology examined for dermal papilla cell activation and follicle research in preclinical models Copper homeostasis researched for metal-binding peptide pharmacology and copper-dependent enzyme function in cellular research What Researchers Look At Fibroblast proliferation, Type I/III collagen synthesis, and dermal matrix protein expression Glycosaminoglycan (GAG), proteoglycan, and elastin synthesis in dermal research models Angiogenesis markers (VEGF, integrins) and endothelial cell migration assays Antioxidant pathway gene expression (SOD, glutathione system) in oxidative stress research DNA repair pathway gene expression panels (~30% of human DNA repair genes are reported to be GHK-modulated) Quick Specs Form: Lyophilized pale blue powder (color from copper complex) Net Peptide Content: 55 mg per vial Quantity: 1 vial Appearance: Pale blue lyophilizate Reconstitution: Bacteriostatic or sterile water (added by the end researcher) Purity: 99% by HPLC Identity: MS-verified (per COA) Storage: Protect from light Identity Basics Compound: GHK-Cu (Copper Tripeptide-1) Synonyms: Copper Peptide-1

F1000Res, doi: 10.12688/f1000research.11775.1
WHO Collaborating Centre for Drug Statistics and Methodology
We can't stress this enough: consistency in administration and adherence to the research protocol are paramount