Payment Options

We proudly accept Visa, Mastercard, Discover and American Express.

Hours of Operation

All emails sent to Muscle Research outside of the listed hours will be answered in the order that they were received the first business day following.

Muscle Research is also closed on any national holiday. If the post office is closed, so is Muscle Research.

  • Monday 10am - 6pm CST
  • Tuesday 10am - 6pm CST
  • Wednesday 10am - 6pm CST
  • Thursday 10am - 6pm CST
  • Friday 10am - 6pm CST
  • Saturday CLOSED
  • Sunday CLOSED


For information about how to use our products please join or view our community forum. There are many great write-ups on everyday use, dosage, and personal results while using the products sold on Muscle Research. We cannot and will not respond to questions about how to use our products via email, contact form, or live help. Please refer to the online forum for questions of this nature.

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Contact Us

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