ghk cu topical vs injectable effectiveness Are We Ready to Measure Skin Permeation of Modern Antiaging GHK–Cu Tripeptide Encapsulated in Liposomes? Biological efficacy of GHK-Cu after

Mechanistic Comparison# Dosing Comparison# Amycretin Dosing# Amycretin dosing is investigational: Subcutaneous: Once-weekly injection, doses up to 60 mg studied in phase 1b/2a over 36 weeks Oral: Daily tablet, doses up to 50 mg (or 2 x 50 mg) studied in phase 1 Phase 2 T2D: Both subcutaneous and oral formulations studied over 36 weeks Phase 3 dose selection will be informed by the completed phase 2 data

10.1088/1757-899x/259/1/012007 138 NurkhasanahSulistyani N.SofyanA

Injectable delivery bypasses the skin barrier but has less direct human evidence for hair growth and introduces additional risks

Notably, effects were achieved via multiple routes of application including intragastric and local, suggesting broad applicability across experimental delivery methods