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It's a complementary mechanism, not a standalone solution

Curr Mol Med

A major problem in treating painful conditions is that tolerance limits the long-term utility of opioid agonists

Multiple isoforms of GRK have been identified (Premont and Gainetdinov, 2007), and both GRK2 and GRK3 have been implicated in MOR desensitization in vitro (Kovoor et al., 1998

Think of GHK-Cu as a cellular distress signal that says: something needs rebuilding here

As estrogen declines through perimenopause and into menopause, women lose an estimated 30% of dermal collagen in the first five years after their final menstrual period, with continued loss of roughly 2% per year thereafter