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The fact that something heals tendons in rats doesn't guarantee it does the same in a 55-year-old with chronic tendinopathy
The question that matters clinically is whether a given patient is a good candidate, what the right protocol looks like for their specific goals and lab results, and whether they have access to a supervised framework that can catch the small number of patients for whom these compounds are not appropriate before they start rather than after
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Licensed 503A compounding pharmacies can now prepare both topical and injectable GHK-Cu under a physicians prescription, following the April 2026 reclassification that restored injectable GHK-Cu to Category 1 status
It often causes pain, stiffness, swelling, and reduced function, especially in the shoulders, elbows, wrists, knees, or Achilles tendon