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GST members in group A and group B can be further identified as Mu class GST, and GSTs in group C were identified as Sigma class
As of 2024, roughly 60 FDA-approved peptide medications exist, 140 are in active clinical trials, and more than 500 are in preclinical development
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The GHK-Cu hair research overview covers this application area, and the peptides for hair growth research overview covers the broader hair peptide landscape
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Advantages: Localized delivery to target tissue (skin, scalp) Non-invasive Lower systemic exposure Well-tolerated with established safety record in cosmeceuticals Limitations: Limited dermal penetration (molecular weight ~340 Da near the cutoff for transdermal absorption) No systemic anti-aging or anti-inflammatory effects Efficacy dependent on formulation vehicle (liposomal carriers significantly improve penetration) GHK-Cu Injection (Subcutaneous) GHK-Cu injection is explored in research settings for systemic administration
