I had previously written a negative review because my order had been lost by the USPS and I wasn't getting the support I felt I needed. Then I realized they're a small company and wearing many hats.... See more
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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
Contact info
9138 W 102nd Terrace, 66212, Overland Park, United States
- support@sigmacompounds
- sigmacompounds.com
No history of asking for reviews
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Replied to 100% of negative reviews
Typically replies within 1 week
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I love sigma compounds
I love sigma compounds. Ive been using them on my GLP journey and they have great products. I would 100% recommend to others.
Customer service sucks
I will give the product 4 stars but their customer service sucks. Actually it is worse than that. It is non existent. I accidentally ordered the wrong thing and wanted to change the order BEFORE it was shipped. I have sent three messages. Zero response. Disappointing.

Reply from Sigma Compounds
I personally had a great experience…
I personally had a great experience with Sigma. They have great products that do exactly what they are for. Great quality,they even come in fancy boxes.i have a drawer with a ton of the Sigma boxes,which should tell you I have been back to purchase several times. I am an affiliate,I try to sell the product to friends,also got a few of them to go with peptides after they saw my results.Thanks Sigma for having #1 peptides in my book.
Sigma has a real reputation!
Sigma is great because it has a face, first of all. Matthew is a well-known and respected advocate for peptide education, so it's nice to know there's a reputation on the line for a quality product.
Most companies are mysterious, which makes for a major trust problem in an industry that already has a certain amount of risk that makes many people uncomfortable.
I have never had a bad experience, and Matthew has been great when I have needed to contact him.
High purity and great customer service
The compounds I purchased are working well. I had some questions and the response from the customer service was immediate.
Always top products and fair price
Decrease in pain…
I have been dealing with increased pain as I’ve gotten a little older. I am very active and have a labor intensive career in massage, bodywork, and physiotherapy. I have read books and articles and listened to countless podcasts on various supplements to help combat the issues that come along with the aging process. I have been using peptides for about 6 weeks and am so pleased with the results. I have tried a few and am happy to report I am virtually pain free. I am sleeping great (which has eluded me for years) and am toning up and losing a little excess weight. It has really helped me maintain my interests and my busy work schedule.
Very happy
Having very good luck with the product. Easy payment system, fast shipping with tracking.
Confused about peptides?
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.
My order
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.
Very good bpc spray
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
Sigma Compound is your Peptide Source
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.
Awesome products and experiences
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.
Great company and peptides
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!
Quality and Service!
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.
I love their reliable products and the…
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!
Very informative company
Very informative company! Very helpful and great resources for my research and ongoing development!
Top quality!
Great company to get your research peptides from. Top quality and fast delivery. You won't be waiting to get your research started.
You should look elsewhere
Company asks you to leave a good review for them and they will give you a gift card of 50$ to use for their products. So, I ordered 3 of their tb-500 and bpc 157 and did not feel anything on their products and I have ordered from other companies and they were way much better than sigmas. I will definitely never order from them again!
Reliable peptide supplier for all my needs
Reliable peptide supplier with good product quality, fast shipping, and solid customer support. Great for research use!
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