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Data organization and analysis doesn't have to be complicated

We're Changing
The Way Viscosity is Measured

We bring simple, easy to use viscometers with tiny sample volumes for a variety of applications.

In the Race for FDA Approval?

Viscosity can help you in each stage as you progress down to FDA approval.
Learn where and when it is imperative on measuring viscosity to further advance your development.

In the Cannabis Industry?

The continued increase in medicinal and recreational use of cannabis products have led to increased
regulations and standards when it comes to manufacturing and using cannabis products.

Looking for a easy, quick solution?

Measure your lubricants at the click of one button!

We make viscometers that are simple and precise.

Started in 2001, RheoSense, Inc. has been focused on redefining the viscosity industry. We focus on delivering reliable and easy to use viscometers that are used for various applications ranging from drug development, lubrication and oil health, cosmetics, and much more! 

Click on our product options to the right or check out our whole product line to learn more.

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VROC® initium

Automatic, High Throughput Viscometer

microVISC™ Viscometer

Portable, Small QC Viscometer

m-VROC® Viscometer


Small Sample R&D Viscometer

Talk to a Product Specialist

We have various product configurations that is dependent on your application and your goals for your research. Speak to a Technical Specialist or a Rheologist today to get a better idea of what is suitable for you!


Why Not Measure Viscosity Accurately?

It's never too late to measure accurate viscosity measurements but it's also never too early! Join hundreds of industry and academic professionals. Get a head start on your research and quality control processes with accurate measurements. Work smart, not hard!
Johnson & Johnson
Exxon Mobil
Dow Chemical

Work Smart, Not Hard! Here Are Some Goodies Said About Us!

Viscosity of Cellular Suspensions

"In brief, we used the RheoSense to measure the viscosity of cellular suspensions. Our goal was to determine the dilution factor needed for the cell suspension to match a running buffer. As demonstrated in the graph this happens around a 10 fold sample dilution factor. Consistent sample viscosity will enable CytoVale to develop robust cellular assays for our core applications involving the high throughput mechanical measurement of cells. 

The RheoSense viscometer enabled us to quickly and accurately measure small aliqouts of sample which was necessary due to limited amounts of biological material. Additionally the low volume allowed us to gather many replicates of data in order to accurately assess biological variability between and across samples. This capability allowed us to have much more robust data collection and higher sample sizes for each point on the curve as compared to using traditional capillary viscometry. "

– Annie Jensen, Cytovale



Latest Blog Posts

A little subtext with some context Latest Blog how you really know how to serve this industry would be handy.

What Can System Suitability Do For You?

January 9, 2019
We frequently get the question, "how do I know that my equipment is working, or that these tests are accurate?" The best way to determine this and be...
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We will be in SD! 2019! (Blog)

January 2, 2019
2019. Get a jump-start on your work. Schedule Now Will you be at the 2019 Peptalk conference? We can get you free passes to the conference. Respond...
Read More

Initium Update

September 26, 2018
Hello! We are pleased to announce that we are releasing a major software update for the VROC® Initium, software version 1.4.1. This software update...
Read More

Check Out Our Resources!

Learn how to apply viscosity to your work!
Application Notes

Apply Our Application Notes to Your Work

Browse hundreds of our application notes on viscosity and material characterization written by our in-house rheologists, customers, and industry leaders. Learn, reproduce the experiments, and advance your research!

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Attend Our Webinars

Missed our live webinar? No worries, we record all of them! Access recordings with technical presentations.

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Tune Into Our Podcasts

Want to rest your eyes or just want to listen to the smooth recordings of our viscosity experts? Tune into our podcast readings of application notes, discussions, and more.

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Youtube Videos


Watch our videos on using our viscometers, tips, and more!

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