Excellent!
I've rarely encountered such excellent and prompt service. Sophie is always gracious and orders arrive in 1-2 days. Thank you!
By Mary
Wednesday, November 4, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
783 reviews
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Here at Master Supplements, we believe in honesty, hard work, and, most importantly, helping people. We're proud of our product efficacy and we're committed to getting them into the hands of those who need help.
Master Supplements, Inc. (master-supplements.com) has 783 customer reviews on The Fair Hearing, with an average rating of 4.9 out of 5.
783 approved reviews, newest moderated first
I've rarely encountered such excellent and prompt service. Sophie is always gracious and orders arrive in 1-2 days. Thank you!
By Mary
They are all about customer service from order to delivery. Their products are clean, easy to understand and use, and of the highest quality. I highly recommend them.
By Chad
Sofi, from Master Supplements customer service was excellent. She helped explain the benefits of: TrueFiber as a prebiotic and as a sponge to pull toxins from the intestinal tract, rather than being re-absorbed; TrueFlora to help eliminate waste and cleanse the system and Theralac. She discussed high fiber foods, the intestinal tract and microbiome. In just a few minutes Sofi explained what many of the DAN doctors discuss, but made it easy to understand, put the pieces together and execute. Sofi is my new best-friend and our family is using three of the Master Supplements products. The product literature and dosing information is excellent. I trust Sofi, Master Supplements and our health is improving as a result. Thank you to the entire staff at Master Supplements.
By Dale
Just started the 30 day restore. Very good feedback on the questions/concerns I had about there 30 day program. Will purchase again.
By Richard
Supplements work very well. Enzalase are the best digestive enzymes I’ve used for both patients and myself. Their other supplements are excellent too.
By Dr. C.
your employee was most excellent!
By Vicki B.
excellent products and customer service!
By Hayley
Probiotic worked after only 2 doses! A friend was taking an antibiotic and complaining about GI problems and "visiting" the bathroom every hour. I offered a few capsules of the TruBifido and within 2 doses my friends symptoms were gone. They were astonished how quickly the product worked. I plan on helping to spread the word that Master Supplements is not the average OTC probiotic like you get at the store. These contain select organisms proven to work. We will use this product at our soon to open clinic whenever we have to prescribe an antibiotic.
By K M.