Topical application: skin surface anti-aging, wrinkle reduction, facial skin rejuvenation, localized wound care, and hair growth support where scalp delivery is the target Subcutaneous injection: post-surgical wound recovery, systemic wound healing support, GI mucosal healing protocols, and combination use with BPC-157 and TB-500 Topical delivery challenges: GHK-Cu does not penetrate the skin barrier easily in standard formulations
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These are areas of active interest rather than guaranteed results, and the size of any benefit varies
For compound-specific timing questions such as how long 10mg of Retatrutide lasts dosing frequency plays a large role alongside storage method
In practical terms, the difference is small enough that standard dosing protocols do not adjust for it