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In a landmark human trial comparing topical GHK-Cu to vitamin C and retinoic acid (tretinoin), GHK-Cu produced measurable collagen increases in 70% of study volunteers outperforming both comparator treatments (Abdulghani et al., 1998)
Centrally, GLP-1 RAs modulate reward pathways to reduce cravings for both high-calorie foods and alcohol (Farokhnia et al., 2025
This modification makes the molecule more stable and resistant to breakdown in the GI tract
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Journal of Clinical Medicine , 12
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