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The characteristic light blue tint of GHK-Cu formulations is not a formulation defect its the visible signature of the copper-peptide complex itself
The pattern is unmistakable
The peptides versus SARMs comparison highlights this distinction further for researchers weighing metabolic peptides against other compound categories entirely
Both are research-use-only
Digestive issues such as Crohn's or celiac disease can lead to impaired absorption of nutrients in the gut which may result in the need for B12 supplementation
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