Human Clinical Evidence: What Exists and What Does Not Direct human clinical trial data for GHK-Cu in wound healing is limited
Genetics, hormones (particularly DHT), stress, sleep, iron, thyroid function, and other micronutrients all influence hair quality and retention
Ongoing monitoring for any unexpected effects remains prudent
At 0.15%, your skin gets all the long-term benefits without the irritation barrier that puts most people off using it consistently
Read the full research summary on GHK-Cu Quality & Testing Every GHK-Cu batch is manufactured to exceed 99% purity and tested using HPLC and LC-MS protocols through an ISO 17025-accredited laboratory, confirming identity, potency, and batch-to-batch consistency
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