Very polite and helpful people
Very polite and helpful people, I did my testing and the results came back quickly. Thank you for the great service!
By Boris
Friday, November 6, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
527 reviews
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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
Very polite and helpful people, I did my testing and the results came back quickly. Thank you for the great service!
By Boris
The instructions for taking the sample were very clear. The results were as prompt as promised and the price was affordable.
By Barbara
Great company, run very well
By John
It’s my second filter, my community still hasn’t tested for PFAS. I did with your test kit.
By Jim S.
Very easy to do. Results were clear and understandable.
By Odysseas
The test method is very well designed and simple to use. Service was prompt and courteous. Price was very reasonable.
By Customer
Your kit is great, easy to follow instructions with everything needed included, even the return UPS sticker. The one suggestion is what the results mean for those contaminants that are highlighted but do not exceed the EPA safety levels. Does it mean that one drink of that water likely won't affect you but if you drink it daily over a period of years that may not be the case. It's just not clear what the results indicate for those contaminants that you highlight.
By Joseph P.
The service was excellent and the test results are quite useful. It would be good to know more about sources of information regarding PFAS in drinking water.
By Brian A.