CyclopureCyclopure 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 Five Star Index, with an average rating of 4.7 out of 5.
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customer
i have never recieved reslts from my water sample that i sent many weeks ago. WTF?
Response from CyclopureJun 19, 2025
Your results were sent to you on June 13, 6 business days after they arrived back at our lab. We are ALWAYS available to help you find results that go into your Spam folder. I've re-sent your results now. 6 business days.
Pierre
Straightforward process to obtain the test sample, and easy to ship back. Results received in a reasonable timeframe, with clear explanation.
Rich B.
Was very pleased to know that I only had 2 PFAS and the levels were low. However, bought RO system so hopefully I am good to go. Price was reasonable considering I was able to know if I was consuming poison PFAS and how much.
Kathleen W.
You worked with me on a more personal level to meet my particular needs. I appreciate that and thank you for that.
Doug H.
Good updates, stayed within promised timeline.
customer
I and other Sierra Club members use Cyclopure extensively and know they are always working to get even better to expanding the PFAS compound list and accuracy. They always respond to our questions and requests.
Michael A.
A real, live person answered my phone calls and questions. The test results were obtained quickly and were easy to understand. My only complaint is that there was no testing for TFAs.
Steve J.
Collection was easy. Return shipping was setup and packaging provided in original box. Results were timely and easy to understand.
