Awesome service from Bill!
Awesome service from Bill! Placed my first order as a referral from my doctor and was great experience. Looking forward to future purchases and service.
By Teresa
Saturday, November 7, 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.
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Awesome service from Bill! Placed my first order as a referral from my doctor and was great experience. Looking forward to future purchases and service.
By Teresa
customer service is exceptional and the quality of the products are great. I love the dark glass bottle and how there are no fillers and the how one capsule contains a lot of product. I am a big fan.
By Isabela F.
Timely delivery!
By Lisa Minchinton :.
I was visiting in California and the post office was not delivering my order in a timely manner, before I was scheduled to leave. Master Supplements customer service offered to re-ship my order wherever I was going. They responded promptly and followed up. Turned out the post office found my package and delivered the order the day before I left. Then Master Supplements sent me a coupon for $10.00 off for my next order which was so kind. Definitely recommend this quality tried and true probiotic.
By Mimi M.
I am in love with these products! I have been so impressed with the clinical support I receive from the folks at Master Supplements and the quality of the supplements is excellent, getting great results with numerous chronic conditions.
By Ginger N.
Amazing company to work with. They have been super duper nice when I messed up my order and they fixed right then. The product is always delivered super fast.
By Tina Hay :.
Thank You for such an effective product!
By JanO
I am very pleased with Master Supplements products. They are very effective and customer service is excellent! I appreciate their support. Thanks
By Tom