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Important Note About Shipping:
We provide same day shipping for all orders placed before 4:00 P.M. Central Time. We ship using U.S.P.S. Priority Mail so your order will arrive as quickly as possible (usually within 2 - 3 days).*
*Certain exceptions may apply.

"Three Ship Free"
When you order any 3 Master Supplements, Inc. products, shipping is free!
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Problems ordering online? 
Please call us at:
(800) 926-2961

Consumer sales, call
(800) 926-2961 Ext 1 or 3.


Store sales, call
(800) 926-2961 Ext 2.

Professional Sales call
(800) 926-2961 Ext 3

All shipping discounts and FREE shipping are for USA customers only.

European Customers:
Click Here for Theralac
Click Here for TruFlora
Click Here for TruFiber
Click Here for Enzalase

For Canadian Orders, Please Call:
1-866-886-0675

Welcome to Master Supplements, Inc. (formerly Therabiotics)
Welcome to the Master Supplements store. Master Supplements, Inc. is a Minnesota corporation founded in 2002 by Randolph S. Porubcan. The corporation’s mission is to research naturally occurring, symbiotic, probiotic micro-organisms and bioactive prebiotics and develop high potency nutraceutical products based on this research. The corporation utilizes prominent scientists in a worldwide network to achieve this objective. Theralac®, with two patents pending, is the first product to be introduced by Therabiotics. Enzalase®, the enzyme master supplement, is the second product introduced by the company. BioActive TruFiber™- a no grit-no taste soluble fiber with bifidogenic enzymes- is the latest addition.
 
Feel free to browse our products on this site.  Be sure and check out www.theralac.com , www.enzalase.net and www.trufiber.net for the latest information about each of our products.

Due to incredible increased costs, Theralac has increased in price for the first time in 5 years  for individual bottles.