Wednesday, November 4, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
783 reviews
Master Supplements, Inc.Select a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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
This is a one-of-a-kind company. True integrity, the highest intent, and the best products in their class. Microbiome health is increasingly recognized as key to optimal physical and mental wellness. These products have truly made a difference in the lives of my patients. Bless you, Master Supplements!
By LG-FNP
Response from Master Supplements, Inc.· Mar 3, 2026
Creating products that promote digestive balance and everyday comfort is our mission!
I checked the ingredients and was surprised that Aspergilis niger was one of your ingredients. I believe that it is not good for the body because it comes from mold. Please respond
By Geralyn L.
Response from Master Supplements, Inc.· Mar 3, 2026
Hi Geralyn, I am so sorry that this wasn't responded to sooner via this review platform but hopefully you were able to contact one of our staff members via phone or e-mail to get an explanation. Some enzymes are fermented of off substrates like bacteria, yeast, and other microorganisms. After the fermentation process the original substrate material is no longer traceable in the enzyme itself. I hope this helps!
Very good delivery service .
By Paulene
Response from Master Supplements, Inc.· Mar 3, 2026
Consistency is key in gut health, so we’re thrilled your order arrived right on time!
Great service and great product
By Marina P.
Response from Master Supplements, Inc.· Mar 3, 2026
11. We appreciate your feedback and your 5-star rating!
I was shocked that these pills are a dollar each and the amount I needed was not going to be supplied with only a 32 pill bottle.
By Paula R.
Response from Master Supplements, Inc.· Mar 3, 2026
Your experience matters to us! Just know that we have a full money-back guarantee so while, high-potency probiotics are expensive to produce, if you don't get the results you're looking for, you get your money back! Most companies don't do that but for over 20 years we have had an excellent track record and rarely get returns. Thank you for taking the time to leave a review.
I have had a great experience with Master Supplements. I received my Theralac order sooner than expected and when I called with a question about refrigeration of the product I was answered in a very pleasant and helpful manner. Would definitely recommend.
By Maria M.
Response from Master Supplements, Inc.· Mar 3, 2026
It’s incredibly rewarding to know our work is making a difference in your wellness journey.
Premium products and premium customer service.
By Journey to W.
Response from Master Supplements, Inc.· Mar 3, 2026
Thank you for trusting us — your results and experience matter deeply to us.
Seamless ordering, fast shipping of great products!
By Dr Randal L B.
Response from Master Supplements, Inc.· Mar 3, 2026
Supporting your routine means making sure you never miss a day — thank you for trusting us.
