About Us


Supplement Partners

Supplement Partners LLC, dba HRsupplements, is a Phoenix, Arizona manufacturer of a broad variety of supplements. nootropics, sports nutrition and body care products. Our facility is FDA registered with cGMP and quality control processes throughout the production chain. Our internal lab testing validates all materials that come into our facility and monitors product integrity at every step of the production process. Next time you are in the area, we invite you to stop by to learn more about us. Thank you for your support.

Our brands:

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What happened to Hard Rhino?

Since we are adding hundreds of new products and growing very rapidly, we needed to better organize our website to make it easier for you to find what you are looking for. The "Hard Rhino" brand is now “HR Supplements“ and all of the product categories have their separate brands.  What WILL NOT change is our industry leading low prices and our unending commitment to quality.

FDA Facility Registration #: 16559250612