subq ghk cu GHK-CU Before and After Pictures subcutaneous ghk cu GHK-Cu Copper

Physical enhancement methods including iontophoresis, microneedling, and ultrasound also significantly increase GHK-Cu delivery, with microneedling pre-treatment increasing peptide penetration by approximately 10-fold compared to intact skin application, effects similar to those achieved with other topical peptide formulations optimized for transdermal delivery

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Published on December 15th, 2025

Not hype

The nasal format allows for investigations into compound stability, delivery kinetics, and interaction with mucosal tissues under controlled conditions

More specifically, they both appear to upregulate the production of growth hormone