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Frag 176-191 retains only the lipolytic arm with no IGF-1 elevation, eliminating the major class-level side-effect concerns (gigantism, insulin resistance, certain tumor risk signals)

A highly pure peptide still needs to have its identity confirmed, its labeled peptide content verified, and its batch screened for contaminants such as endotoxins, heavy metals, microbial contamination, and residual solvents

When taken over a long period, high potassium intake (through supplements or diet) may lower Vitamin B12 levels, especially if your diet is already lacking in B12 sources