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In animal and human studies, topical or injected GHK-Cu accelerates closure, boosts granulation tissue, and stimulates the growth of new blood vessels (PMID: 8227353, 10383745)

It offers benefits such as reduced signs of aging, improved wound healing, and enhanced overall skin quality

The increased efficacy is likely due to the enhanced stability and boosted bioactivity of D-CuP throughout the scratch wound repair process

(Particle Peptides) Endocrine rejuvenation As noted, research showing improved testosterone production in aged mice suggests application in hormone decline, endocrine ageing syndromes (menopause/andropause), though this is very early