Everything is exactly as the company…
Everything is exactly as the company promises. Informative website, fast shipping, and compared to other peptide companies, very good price for the product.
About Sigma Compounds
Data updated- Website
- sigmacompounds.com
- Category
- Construction & Manufacturing
- Location
- United States · Overland Park
- Status
- Unclaimed
- Last 12 months
- 60 reviews
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Is Sigma Compounds legit?
Sigma Compounds (sigmacompounds.com) has a 5.0 out of 5 rating on OK.one, based on 61 user reviews collected here. It is listed under Construction & Manufacturing and its reputation is excellent. Praise is nearly unanimous, with 100% rating it 4 stars or higher; 60 of them were added in the last 12 months. Last updated 2026-08-10.
What people say
High Recommend
The website is very straightforward to navigate, delivery was prompt, and my order showed up in very professional packaging. I highly recommend Sigma Compounds.
A trustworthy company
My order was shipped quickly. It contained everything I ordered and the packaging is very professional.
Top in my book
Let's say, in this industry, it's hard to find companies with integrity that do what they say they'll do. Sigma wins at this hands down. Fast shipping, great compounds that you don't have to worry about not reconstituting, which I have had happen with other companies.
Quick service and good product
Excellent service
Excellent service. Despite a shipping glitch (not the company's fault), they offered me a discount on the purchase of replacement items.
Quality products and good pricing
Quality products and good pricing. Arrived quickly
I really like Sigma compounds…
I really like Sigma compounds everything came quickly and the website is so easy to navigate. Five stars all the way!
Great product line
Great product line Remarkable customer service
Large selection of research products…
Large selection of research products with great pricing. Quality is top notch. Also, learned a lot from Matthew Farrahi's two books. Will definitely purchase from Sigma again.
Nothing but positive experience for me
Nothing but positive experience for me. Fast, responsive and quality.
Quality products
Quality products, packaging and excellent service from the business. I recommend this site to my friends often who are researching and want to find quality vendors with legitimate products.
The products are top notch
The products are top notch, I have purchased both books,they are very helpful,sigma compounds is a great place to get peptides
Received quickly & well packaged
My order came quickly & well packaged so no one tore it open. I love that the products come in a storage case that can just go right in the refrigerator or freezer! That’s a huge benefit!! Matt’s books GREAT for explaining & often dosing.
Easy ordering
Easy ordering, professional quality.
Professional and Secure
Real professional site for research materials. Safe ordering system.
service
Extremely solid customer service
Sigma Compounds : a peptide company with excellent products.
Sigma Compounds : a peptide company, did meet with exceptional customer service and fast delivery.
A pleasure to do business with Sigma!
Matt is very professional! I have actually bought and given away 4 of his books!. Very clear and informative. It's a battle to get through all the hype on the internet for sure. Purchasing products on his website is efficient and products arrive quickly. I have never had a problem with an order! No reactions from his products.
Emailed to check Great Product with Fast Shipping !
Emailed to check on some questions I had. Very responsive with easy answers. Shipping was on time, and the product was Fantastic ! Thank You !