Wednesday, November 4, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
527 reviews
CyclopureSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Cyclopure is a materials science and environmental engineering firm headquartered in Evanston, Illinois. The company has developed a novel adsorbent (tradename DEXSORB®) with high selectivity for diverse PFAS structures, regardless of chain length, structure, or functional group. DEXSORB is commercialized for multiple PFAS related uses, including (i) environmental monitoring, (ii) household filtration products, and (iii) municipal + industrial treatment systems.
Cyclopure (cyclopure.com) has 527 customer reviews on The Fair Hearing, with an average rating of 4.7 out of 5.
527 approved reviews, newest moderated first
Easy to figure out what I wanted, went with extreme for the capacity. First one arrived damaged, customer service was responsive and another filter delivered within 3 days. Installed, waited a few weeks, ran test and no pfas detected.
By customer
Fun emails!
By Walden
My blood test came back positive for elevating PFOS. I wanted to test potential water sources without breaking the bank, and this service fit the bill. If I need additional water testing, I plan to come back. Used it twice so far to test drinking water at work and at home.
By Mark R.
Easy to use kit. Glad to know we don’t have any PFAS. Thank you for offering this service.
By Larry D.
Test was easy to administer with very clear instructions!
By John S.
Easy testing process and quick response time.
By MikeJcustomer
The kit was promptly delivered, had easy to follow instructions, and easy to return for analysis. The results were completed quickly and with good detail. Great communication throughout the whole process.
By Valued C.
I am involved with a citizens organization the is trying to hold the US Navy accountable for the PFAS pollution that they left at Brunswick Naval Air Station Brunswick. Many people who live near the base property are finding that their wells are polluted with PFAS that is in the ground on the former base. We use the. Cyclopure PFAS test kits to check people’s wells, streams and coastal waters. The Cyclopure test kits are relatively cheap and easy to use so our people can test more sites than we can with the more expensive test kits from local laboratories. Cyclopure has been very helpful and responsive to our needs.
By Robert M.
Response from Cyclopure· Mar 2, 2026
Thank you for taking the time to write this in-depth review! We appreciate your support and hope to soon complete all validation required by DOD to have DEXSORB® included as primary remediation adsorbent at the Naval Air Station . Together we can clean this up for good!
