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If you experience any adverse effects, discontinue use and consult a healthcare provider
Potential Side Effects and Safety Considerations General Tolerance GHK-Cu is considered safe and non-toxic , with a safety profile similar to placebo in clinical trials (Abdulghani et al., 1999)
Patients with high-sensitivity variants benefit from lower starting doses, oral formulations, or dual-compound protocols, reducing stomach pain incidence and improving long-term treatment adherence
Proc Natl Acad Sci 97:48444849
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