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Similarly, the Paula's Choice 25% Vitamin C + Glutathione Clinical Serum is powered by Tetrahexyldecyl Ascorbate (THDA)

GHK-Cu addresses both: it suppresses pro-inflammatory cytokines (IL-6, TNF-alpha) and upregulates VEGF for angiogenesis around the follicle

References Int J Mol Sci (MDPI) Overview of Epitalon: Highly Bioactive Pineal Tetrapeptide with Promising Properties (2025) PMC/Biogerontology Epitalon increases telomere length in human cell lines through telomerase upregulation Neuroendocrinology Letters (PubMed) Synthetic tetrapeptide Epitalon restores neuroendocrine regulation in senescent monkeys Bull Exp Biol Med (PubMed) Geroprotective effect of epithalamine in elderly with accelerated aging (12-year RCT) Alzheimers Drug Discovery Foundation Epithalamin/Epithalon Cognitive Vitality Report (mechanisms, dosing, safety) JPT Peptide Technologies Peptide Stability: How Long Do Peptides Last

Animal studies examining cartilage integrity have noted potential improvements in matrix composition and joint flexibility during recovery periods, making it a research candidate in post-injury musculoskeletal models