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Description
These impurities may cause irritation or reduce effectiveness
Quantified Benefits: 26%50% Regrowth: The active copper peptide group achieved a "Scale 1" improvement (26-50% regrowth) compared to baseline
Lyophilization (freeze-drying) is the standard format for research-grade peptides because it maximizes long-term stability

Many researchers use all three together for multi-target hair restoration
