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Age and Qualification Requirements AGE RESTRICTION: You must be at least 21 years of age to purchase from Hacker Peptides

For broader handling risk, read our research peptide safety guide

Common side effects Injection-site reactions: mild redness, tenderness, swelling, occasional bruising - usually resolve within hours Skin flushing / warmth - brief, related to vasodilation Transient fatigue in the first 12 weeks of intensive protocols Mild headache - usually dose-related Higher-dose theoretical concerns Copper accumulation - each 2 mg injection adds roughly 0.03 mg of elemental copper, trivial next to the 0.92.2 mg from a normal diet

Copper is only required in trace amounts by the body, and too much copper buildup could theoretically cause nausea, abdominal pain, tiredness, liver damage, and neurological effects