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4 to 6 Hours of Sustained Electrolyte Release

All Natural Performance

Less Tablets - Less Often

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My Mindset Is Everything

All That I Am, I Am Because of My Mind.

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See What Endurance Athletes Are Saying About ReplaceSR

See What Endurance Athletes Are Saying About ReplaceSR


ReplaceSR is a balanced combination of electrolytes in a sustained release electrolyte tablet, providing a continual release of electrolytes over 4-6 hours.  The gradual release of electrolytes provides your body the replacement as it is needed due to the loss from prolonged perspiration, and reduces the likelihood of high localized concentrations and gastric distress.

Electrolyte-Replacement-ChartEfficient.  Convenient.  Say goodbye to sweeteners, mixing beverages, or interrupting your competition to take your electrolytes.  ReplaceSR electrolyte tablets allows you to focus on your performance and nothing else.

A balanced formulation of electrolytes, ReplaceSR electrolyte tablets are:

  • Sustained Release: provides a continuous supply of electrolytes during a period of physical activity as the body needs them
  • Convenience: Take the electrolyte tablets prior to exercise periods and drinking water at regular intervals rather than mixing and having to carry around a bottle of liquids which is often heavily sugared liquid
  • Balanced Formula: Includes magnesium and potassium, as well as phosphates for buffering and absorption
  • Efficient: Gradual release means fewer tablets taken less often
  • Natural: Tablets contain no sugar, starch, preservatives, artificial colors or imitation  flavors.

Electrolyte Tablets for Sustained Performance

The process used for the manufacture of our clinically proven ENDURACIN® is used in all of our controlled release products.

This tablet delivery ensures a gradual release, often resulting in less stomach irritation, greater bioavailability over time, as blood levels are maintained instead of excessively excreted. Sustained release electrolyte tablets means less tablets, less often. Allowing you to concentrate on your sport and your performance. 

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“IMPROVE YOUR PERFORMANCE Maintaining electrolyte balance by more closely replacing the losses from sweat has now been proven to lower cycling and running times in a half-marathon.”

Electrolyte Replacement Tablets- Quality Products From Quality Raw Materials

Triathlete Electrolyte Replacement

ReplaceSR is made from quality raw materials that are sourced from US companies. As the dietary supplement industry is becoming more global in manufacturing, quality assurance becomes ever more critical, and the raw materials used at Endurance Products Co. (EPC) are double-tested prior to manufacturing at our Tigard, OR facility.

Certificate of Analysis: Every raw material ingredient used in manufacturing is accompanied by a Certificate of Analysis (C of A) from its source. A C of A demonstrates the assay results which confirm the content of the raw material, as well as test results for impurities, confirming the lack of heavy metals, contaminants or microbes. Additional tests are done depending on the type of material, as necessary.ReplaceSRandFacts577ReplaceSR electrolyte tablets contains no sugar, starch, artificial flavors, sweeteners, colors, or preservatives.

While electrolyte replacement has now been shown to improve performance, ReplaceSR electrolyte tablets do not contain any ingredient listed as banned by the NCAA or other governing bodies.

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Sustained Performance Less Tablets Less Often

electrolyte replacement
electrolyte tablets for your workout

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What Our Athletes Are Saying

“My Army unit had a 36 hour endurance challenge and Replace SR was the key to success when temps spiked to 90 degrees and Soldiers were accomplishing tasks with minimal rest and only water. All competitors knew that because we had used Replace SR they had an edge. I’m not sure if there is a better testament to a product, than 50 Army Soldiers going strong for 36 hours straight on Replace SR!” Unfortunately we had one guy who thought he wouldn’t need the Replace SR and dropped from the competition due to heat related/hydration issues. – Thomas Hurd

A huge THANK YOU!!! for the 15min PR in the Portland Marathon. I know it was your product because it was the only thing i did different from previous races. No cramping and felt strong the whole race…. WoW I love your product !  – Brian Jennings

Hi, I just want to let you know I tried your product before the Portland marathon and I made it through 18 miles without cramping and the entire marathon without gassing out. I usually cramp at about 6-8 miles in. The only thing I did differently was take your product. Thank you!!! – Brooke Elliott Elmore

Hello folks,

Your product is great . It was a pleasure meeting some staff at the Portland marathon expo last week. I have been using your product since being introduced to it at the Hagg Lake Tri this summer. I placed 2nd in my age group  (50-54) in 1.37.50 at the PDX 13.1 half marathon and it is due to training with your product. No leg cramps. My time was almost 2 mins faster than last year and I’m getting older to say the least  but your product has enhanced My training. Thank for bringing this product into the running Tri community. May you have much success .