For heavy metals, we test for arsenic, lead, cadmium, and mercury in accordance with the limit values specified in Regulation (EU) 2023/915
Key Takeaways on Sermorelin vs CJC-1295/Ipamorelin Sermorelin is one peptide on one pathway

Published Research Data Quantified findings from peer-reviewed studies on AHK-Cu + GHK-Cu human genes modulated by GHK-Cu in gene expression analysis increase in collagen synthesis observed in fibroblast cultures treated with GHK-Cu increase in VEGF expression in dermal papilla cells exposed to AHK-Cu reduction in TNF-alpha inflammatory markers in GHK-Cu treated tissue models HPLC-verified purity range across published Certificates of Analysis collagen and ECM-related genes upregulated by GHK-Cu in connectivity map data Published Research Studies on AHK-Cu + GHK-Cu 2018 Regenerative and protective actions of the GHK-Cu peptide in the light of new gene data Int J Mol Sci 2015 GHK peptide as a natural modulator of multiple cellular pathways in skin regeneration BioMed Res Int 2012 GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of numerous antioxidant genes Cosmetics 2008 The human tri-peptide GHK and tissue remodeling J Pept Sci 2007 The effect of tripeptide-copper complex on human hair growth in vitro Arch Pharm Res Why Research Peptides All comparisons reflect general industry practices

Additional testing may be considered for people with a family history of premature heart disease, metabolic risk, abnormal cholesterol results, known cardiovascular disease, or uncertainty after standard testing: ApoB, Lp(a), and hs-CRP may help reveal particle burden, inherited risk, and inflammation that are not fully captured by LDL cholesterol alone