After purchasing from numerous vendors
After purchasing from numerous vendors, Sigma Compounds stands head and shoulders above the rest.
Juan Romo
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Sigma Compounds
4.950 reviews
Last reviewed: Feb 20, 2026Do you agree with Sigma Compounds's TrustScore? Voice your opinion today and hear what 79 customers have already said.
sigmacompounds.comMember since Feb 2026
Sigma Compounds is an online company. Based on 50 reviews on TrustPlane, it has an average rating of 4.9 out of 5 stars. Last reviewed February 20, 2026.
Customer Reviews
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Great value for great quality products
Great value for great quality products
customer
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Satisfied customer
Im fairly new to the Peptide market, Sigma being my third vender. Im impressed with the shipping and customer service! Packaging is Plautium level!!! I purchased the 10/10 Bp157/ TB500 nasel spray and could not be happier. Im reading Sigma recommend books and they are educational and easy to follow! Looking forward to doing business in the future.
Mel Befus
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Customer experience exceeds expectations
I had a great experience ordering from Sigmacompounds.com. The ordering process was fast, efficient, and very professional from start to finish. My peptides order arrived within a week, which exceeded my expectations. The packaging was exceptionally well done—clearly designed to protect the products and noticeably better than what I’ve seen from other competitors in this space. Overall, a smooth and reliable experience, and I’ll definitely be ordering again.
L Fritts
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Product as described
Product as described. Good quality.Decent delivery time. Fair prices. Good discount with coupon.
Dean Florence
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Good customer service easy
Good customer service easy
Edward
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Consistency you trust
Always an easy and clear online ordering process. Great and trusted products.
R Perez
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They have great trusted products that I…
They have great trusted products that I wouldn't buy anywhere else. Every purchase I've made has been quick, consistent and shipped quickly. I would completely recommend sigma compounds.
Jason Wyckoff
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I just received my order today
I just received my order today. It was well packaged with the ice pack. The bottle and nasal spray were packed in another box with additional padding. However, the ice pack has already melted and was at room temp by the time I received it on 01/30. From the shipping tracking info, it looks like it was picked up by the carrier on 01/26. Hopefully, this does not impact the quality of the peptide. My only complaint is they don't have faster shipping options at the time I ordered it. I hope they add it in the future. Also, I suggest the nasal spray to be plastic wrapped to ensure its sterile. It does have a cap so its no big deal.
Marc
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Order came quickly and works…
Order came quickly and works phenomenal. I have placed 2 orders so far as well as my son and we are getting ready to make another order soon.Awesome company!
Doug
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Sigma Compounds Above All
After purchasing from numerous vendors, Sigma Compounds stands head and shoulders above the rest. Their product quality is unmatched, their presentation is exceptional, and their customer service sets a new standard. They’ve earned my trust — and my business — for life.
Ed
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Only place I buy
Great customer service, top quality peptides with great shipping time! Definitely recommend!
Beee
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They're Great
This has been the best company for reliable peptides.
Nathan
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There are so many fly by night…
There are so many fly by night producers out there. Sigma has fair prices, and their products are top quality. Ordering is a breeze, and shipping is fast(not withstanding USPS incompetence! They earn your business!
Matt Iozzi
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Package was nice and secure and package…
Package was nice and secure and package was nice. To early to tell if it works.
Eric Floyd
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Excellent quality products
Excellent quality products, trust worthy company with great customer service and quick delivery. My first choice!
Bobby Strom
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Sigma Compounds is 5 star worthy
Sigma Compounds is my go to company for researching peptides in Ehlers-Danlos Syndrome. All of the products are quality tested and I trust them fully. Matthew and/or Customer Service are easy to contact and reply promptly when I have had a question. Ordering is simple, the website is easy to navigate to find exactly what you need. Order fulfillment & shipping are prompt, products come beautifully & safely packaged, sealed, & sterile. I would only buy peptides from Sigma!
Joan Catanzariti
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Sigma Compound is the best research…
Sigma Compound is the best research peptides company in the world and U.S. the books are top notch and extremely helpful "Peptides made simple usage, dosing, cycling and reconstitution encyclopedia. 10 out of 10 stars.
Peter Sanchez
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A trustworthy vendor!
A trustworthy vendor, fast shipping, reliable payment methods, and high-quality products. There are many peptide compound companies out there to choose from with flashy sites and crazy branding - don't waste your time gambling! Sigma is a legit supplier, and a reliable compound manufacture with consistent adn potent peptides.
Jim Harnish
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The best in Peptides
The best in Peptides
Luis Camacho
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Cite this page
According to TrustPlane, Sigma Compounds has a 4.9/5 rating based on 50 verified reviews as of March 2026. Source: trustplane.app/company/sigmacompounds-com