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In barrier-disruption models, GHK-Cu has been reported to support recovery of stratum-corneum lipids, tight-junction proteins, and ceramide synthesis
For a blend, the documentation review must also address component-level identity
Most topical studies track outcomes over 8-12 week windows, which is where the 6-8 week benchmark for visible changes comes from
Since then, peptide research has expanded into therapeutic areas like cancer, autoimmune diseases, hormone deficiencies , and cosmetic medicine
Treated wounds contracted at least 11% more than controls, with increased collagen deposition and angiogenesis confirmed histologically
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