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Vascular Health Is Foundational Health

Every organ and system in your body relies upon the oxygen, nutrients, and other molecules delivered by your vascular system. Since vascular health underpins overall health, taking care of your vascular health can change your life.

Learn more about how to support and maintain your vascular health.*

Microscopic organ structure purple

Why Endothelial Glycocalyx Support

Discovered only in recent decades, the endothelial glycocalyx (EGX) is the key to vascular health. It is an upstream target for supporting vascular health. Since the vascular system supports every single organ and system in the body, it has transformative potential for lifelong health and wellness.

Find out more about this critical structure.

Intro to the EGX

Rigorously Tested Products

Our mission is to advance science and enhance health – and our model combines rigorous research, development, and testing with an exacting approach to sourcing, manufacturing, and transparency.

Learn how our model has resulted in advancements in understanding and science.

Explore the Research
Our Story

Advancing Science. Enhancing Health.

At Calroy, it starts with a discovery – a study or finding that warrants a second look. With collaborative research and experimentation, it becomes a breakthrough. And through our process of sourcing, formulation, testing, and rigorous clinical research, it yields dietary supplements with transformative potential for lifelong health and wellness.*

Meet our team and learn more about our approach.

Our Story
Arterosil HP bottle

Arterosil HP: Support and Maintain Your Vascular Health*

All vascular health relies on a healthy endothelial glycocalyx, the fragile inner lining of the entire vascular system. Arterosil HP® supports the structure and normal function of the endothelial glycocalyx.* Calroy’s proprietary MonitumRSTM seaweed extract, the core ingredient in Arterosil HP, is rigorously researched.

Find our more about our flagship product.

Arterosil HP
Vascanox HP bottle

Next-Generation Nitric Oxide Support

Vascanox HP® is a breakthrough product providing nitric oxide support for up to 24 hours with a single dose.*†

Optimal nitric oxide levels have been shown to:

  • Support a healthy cardiovascular system*
  • Support and maintain blood pressure in the normal range*
  • Support healthy circulation*

Calroy’s proprietary Vascanox HP formula targets nitric oxide metabolism, using multiple pathways.


As measured by saliva NO test strips in an open label IRB-approved study.

Vascanox HP
"The endothelial glycocalyx is really one of the most important and intensely researched areas in human health in years."
Dr. Kara Fitzgerald
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