This independent HPLC analysis confirms GHK-Cu 100mg from LIMITLESS Biotech at 95.762% purity. The testing was conducted on November 3, 2025 by Janoshik Labs, a third-party analytical laboratory. The sample tested at 119.42mg, indicating higher than stated dosing.
GHK-Cu (Glycine-Histidine-Lysine Copper Peptide) is a bioactive copper peptide researched for its potential collagen synthesis, wound healing, skin regeneration, and anti-aging properties. A purity level of 95.762% indicates high-grade synthesis quality with minimal impurities.
The full certificate of analysis is available for verification at www.janoshik.com/verify/ using the unique key provided on this page.
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.