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About Us

Performance Clinics are World's premium quality sports research product suppliers. Our products are the highest quality / purity on the market, produced in the most sophisticated and highly regulated US facilities available and tested by World's most trusted quality assurance analysts with quality reports available on request.

We provide research only products to our clients and ensure access to the best quality product at a fraction of the price available to research specialists elsewhere. Please read our product usage disclaimer before deciding whether or not our products are suitable for your research project.

MK-2866 (Rapid Repair)


in stock

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Product name: MK-2866

Short name: Rapid Repair

Molecular Formula: C19H14F3N3O3

Concentration: 20mg/ml

Volume: 30ml

MK-2866 is an oral SARM that binds to the androgen receptors and as such shows selective anabolic activity. This also increases protein synthesis and helps to build lean muscle.

MK-2866 uses its anabolic effects on muscle tissue specifically so users see targeted results and lean muscle gains. By targeted results we mean targeted and rapid repair / healing.

Importantly it also acts as an agent to reduce degeneration during recovery times and hence the name ‘rapid repair’ is highly indicative of this factor.

Key Benefits:

  • Phenomenal muscle recovery
  • Rapid repair capabilities
  • Strong injury prevention
  • Complete prevention of muscle breakdown
  • Creates anabolic activity
  • Exceptional recompounding ability
  • Fat loss and muscle gain simultaneously
  • 24-hour half- life meaning one does per day


Rapid Repair Formula comes in a 30ml bottle at 20mg/ml so 1ml = 20mg. Typically, doses will be 20mg per day.

Note: All PC International products are for research purposes only. No statements made on this website or blog have been evaluated by your local or international administrative or regulatory body as our products are strictly for research purposes only. All products for sale are intended for laboratory and research use. All buyers must be a minimum of 18 years to purchase these products. These products are not intended to treat, cure or prevent any disease or illness. Please refer to our product use and disclaimer for more information.