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Japan Formula

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If you're storing long-term, refrigerate at 4C and never freeze unless the product is lyophilized powder (which is how we supply GHK CU Copper Peptide for research use)

References International Journal of Molecular Sciences Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data (2018) International Journal of Medical Sciences Exploring the Role of Tripeptides in Wound Healing and Skin Regeneration: A Comprehensive Review (2025) Vitamins & Hormones (PubMed) Thymosin 4 Promotes Dermal Healing (2016) Expert Opinion on Biological Therapy (PubMed) Thymosin 4: A Multi-Functional Regenerative Peptide

Acute inhibition of glutathione biosynthesis alters endothelial function and blood pressure in rats