In a randomized double-blind clinical study using twice-daily topical GHK-Cu, visible improvements in wrinkle depth, skin firmness, and overall skin tone were measured over an 8-week period, with changes beginning to appear during the study timeframe.

Healing and tissue-repair research suggests that early biological activity—such as increased collagen production, antioxidant enzyme activity, and improved tissue organization—may begin within days to weeks, while more noticeable cosmetic changes in skin quality, tone, and smoothness generally become more apparent after several weeks to months of consistent use.

• Anti-aging and wrinkle reduction in cosmetic studies
• Wound healing, angiogenesis, and tissue repair in the skin and deeper tissues
• Antioxidant and anti-inflammatory protection in skin and lung models
• Modulation of gene expression related to regeneration, DNA repair, and stress resilience
• Support for hair and scalp, and copper peptide–based hair formulations

Each batch of GHK-Cu is independently tested by a certified external laboratory to verify purity, identity, and composition. Every analysis is performed using advanced methods such as HPLC and mass spectrometry, ensuring the highest research quality.

Verified purity: Each batch is tested for peptide integrity and composition.

Third-party certified: Analyses are conducted by accredited laboratories using validated testing procedures.

Transparent results: The corresponding Certificate of Analysis (COA) and analytical data can be viewed in the product images above.

All products from My Peptides Lab undergo strict handling, temperature control, and documentation procedures to ensure consistency and traceability from production to shipment.