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Its defining physicochemical feature is resistance to hydrolysis at low pH, unusual for a peptide of this length and attributed to a proline-rich, conformationally constrained backbone carrying three consecutive prolines plus a fourth at position eight

Weekend warriors, recreational athletes, and fitness enthusiasts who train consistently often find that nagging injuries that would have resolved in weeks now persist for months

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What are the most common side effects of these injections with Botox, Dysport, or Xeomin