Tuesday, November 3, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
120 reviews
Sigma CompoundsSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Sigma Compounds stands at the forefront of the research peptide industry, offering premium peptides. We have established strong partnerships with manufacturers who ISO 9001:2008 standards, allowing us to offer our clients exceptional pricing without compromising on quality or purity. Our commitment to delivering top-notch products ensures that we remain a reliable resource for the scientific community, and we are delighted to share these savings with our valued customers
Sigma Compounds (sigmacompounds.com) has 120 customer reviews on The Fair Hearing, with an average rating of 4.9 out of 5.
120 approved reviews, newest moderated first
Confused about peptides? Sigma Compounds is the place to go. The books, "Peptides Made Simple", provide clear, comprehensive, and concise information about peptides that no one else offers. They're the permier guide for making informed and confident selections.
By Philip S.
Thank you for getting back to me, I take accountability for not writing the order number on the Zelle I sent. I’ve bought products from this company before and had great results when I had a torn meniscus. Looking forward to continue to use your guys products in the future.
By Consumer
Very good bpc spray. I had a problem where a faulty bottle leaked out and they promptly replaced it at no cost. One of the best peptides co that I have tried
By Tim G.
I’ve ordered several times from Sigma Compound since its Peptide launch. My orders ship promptly and are beautifully packaged and the purity is spot on. I would highly recommend ordering from Sigma.
By Serena J.
I’ve ordered from Sigma Compounds several times and always had great experiences every time. Shipping is always quick and their products are top quality. I highly recommend them.
By Alan B.
I have been using Sigma compounds since they started and I have had nothing but great experiences. The peptide research I’ve been able to do bc the peptides are legit has made a huge difference. Customer service has always been great as well. I highly recommend!
By TC
My husband and I have been using Sigma for several months now and are very pleased with the condition and care Sigma takes in the preparation and delivery of their products.
By DeAnna M.
I love their reliable products and the fact that sigma has been around long enough to trust in. They always have great products. Order with confidence! You will not be disappointed!
By chris W.
