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As we age, our bodies produce less GHK-Cu copper peptide a naturally occurring peptide that supports collagen production, skin renewal, and healthy hair growth
They stimulate insulin secretion, suppress glucagon, and slow how quickly food moves through your stomach
potential long-term risks include pancreatitis, gallbladder disease, lean muscle loss, and early worsening of diabetic retinopathy, though no confirmed causal links exist beyond 48 weeks of data
We also need to be honest about something the public forgets: Drug safety unfolds over decades
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