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    Revolutionary Science. Real-World Outcomes.

    Transforming science into life-changing solutions.

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    Revolutionary Science. Real-World Outcomes.

    Transforming science into life-changing solutions.

Our Story: About Calroy Health Sciences

At Calroy, we translate breakthrough science into products without parallel. Through rigorous research and formulation, we develop transformative new solutions for foundational health.* Our mission is to advance science and enhance health for the benefit of healthcare practitioners and their patients.

Products Without Parallel

Calroy supplement formulas are designed to protect health at its foundations.
Supporting circulation, heart health-focused outcomes you can feel.

  • Arterosil HP®

    The gold standard for vascular and heart support; restores and protects the endothelial glycocalyx.*

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  • Vascanox HP®

    Promotes up to 24-hour nitric oxide production for healthy blood flow. *

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    What is the Endothelial Glycocalyx?

    The endothelial glycocalyx supports every blood vessel in the body. That's hugely important for your vascular system. And of course, every organ in your body depends on healthy blood flow.

    Breakthroughs in scientific knowledge have brought a critical structure to the fore: the endothelial glycocalyx. This slippery, micro-thin inner lining of every blood vessel in the body performs many important functions, including:

    • Supporting the health of the endothelium
    • Harboring antioxidants, coagulation factors, and more
    • Regulating passage of molecules through to the endothelium
    • Triggering nitric oxide production and resulting vasodilation

    How Arterosil HP really works

    Arterosil HP works by nourishing the endothelial glycocalyx, the delicate gel-like lining that supports healthy blood vessel function.

    • Nourish the Glycocalyx

      Each serving delivers MonitumRS®, a proprietary rhamnan sulfate extracted from rare green seaweed.

      Step 1

    • Support Vessel Protection

      MonitumRS® helps nourish the endothelial glycocalyx, supporting the body's natural vascular defense system.

      AStep 2

    • Circulatory Support

      By supporting healthy vessel structure, Arterosil HP helps maintain efficient blood flow and nutrient delivery.

      Step 3

      What is Nitric Oxide?

      Nitric oxide is a messenger molecule that is produced in the body through both nitric oxide synthase (NOS) pathway and nitrate-nitrite-nitric oxide pathway. Vascanox HP supports the entire biotransformation cycle for nitric oxide, including both pathways.*

      Nitric Oxide Synthase Pathway

      Nitric oxide synthases are a group of 3 enzymes catalyzing production of nitric oxide in the body. Endothelial NOS (eNOS) is primarily responsible for the generation of nitric oxide in the vascular endothelium. The mechanical force of blood flow triggers a response in the endothelial glycocalyx, which in turn signals the endothelium to generate nitric oxide.

      How Vascanox HP really works

      Most nitric oxide supplements give you a quick spike that fades fast.Vascanox HP uses a dual-pathway plus slow-release system to keep levels steady for a full 24 hours.

      • Fast boost from nitrate pathway


        Potassium nitrate and beetroot extract quickly turn into nitric oxide, so you may notice differences within hours.

        Step 1

      • Turn on your body's natural NO production

        S-Allcysteine from fermented black garlic fires up your eNOS enzyme, helping your body make nitric oxide on its own.

        AStep 2

      • Lock in results all day long


        Antioxidant berry polyphenols protect nitric oxide so it doesn't break down quickly. It supports slow, steady release all day.

        Step 3

        • Fast boost from nitrate pathway

          Potassium nitrate and beetroot extract quickly turn into nitric oxide, so you may notice differences within hours.

          Step 1

        • Turn on your body's natural NO production

          S-Allcysteine from fermented black garlic fires up your eNOS enzyme, helping your body make nitric oxide on its own.

          AStep 2

        • Lock in results all day long

          Antioxidant berry polyphenols protect nitric oxide so it doesn't break down quickly. It supports slow, steady release all day.

          Step 3

          Vascanox HP + Arterosil HP Perfect Pair Bundle

          Grab our Vascanox HP & Arterosil HP bundle for total circulation care.Vascanox HP's patented dual path formula keeps your nitric oxide stable all day long, easing fatigue, brain fog, and cold hands and feet.Arterosil HP fixes your blood vessel lining so your body can make more natural nitric oxide.Both are fully vegan, made in cGMP certified labs, and totally safe to take together every day.

          If you're on blood pressure or heart medication, be sure to talk to your doctor before starting.

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          Driven by Purpose.Defined by Science.

          Calroy advances human health by translating emerging scientific discoveries into breakthrough supplements that deliver real-world outcomes people and practitioners can trust.

          Calroy develops clinically validated supplements with patented ingredients that restore and protect the body' s foundations.* True vitality begins deep inside your body' s systems.

          • Driven By Science

            Grounded in rigorous, product-specific clinical research.

          • Relied Upon By Experts

            Created by leading scientists and used by top healthcare practitioners.

          • Trusted Quality

            We source premium ingredients and conduct strict testing for purity, potency & safety.

            Find out why the experts trust Calroy supplements

            • Cardiologist, Calroy Educator

              Arterosil is one of those very few elite natural products that has great biochemistry as well as clinical data.

              Joel Kahn, MD

            • Functional Medicine, Calroy Affiliate

              Tending to my glycocalyx is something that' s a part of my daily supplement stack.

              Kara Fitzgerald, ND

              • Cardiologist, Calroy Educator


                Arterosil is one of those very few elite natural products that has great biochemistry as well as clinical data.

                Joel Kahn, MD

              • Functional Medicine, Calroy Affiliate

                Tending to my glycocalyx is something that' s a part of my daily supplement stack.

                Kara Fitzgerald, ND

                • I take Arterosil HP paired with Vascanox HP daily, my overall blood circulation and cardiovascular wellness have boosted drastically as a perfect supplement bundle set.

                  Olivia R.

                • After taking Arterosil HP for four full weeks, my perpetually cold numb hands stay warm all day, and my perpetually cold numb hands stay warm all day, and my doctor.

                  Linda M.

                • Tried dozens of nitric oxide supplements before; only this professional grade formula keeps my resting blood pressure balanced naturally.

                  Brian F.

                • Great value 60-count vegan bottle,Ireordered twice already as it relieves chronic fatigue tied to poor cardiovascular flow.


                  Patrick G.

                • This exclusive natural seaweed extract solved my lifelong poor circulation issues; one tiny daily capsule slides down easily and never causes uncomfortable stomach irritation.

                  Robert T.

                • The science-backed Monostroma algae extract repairs damaged arterial walls, and my post workout physical recovery speed has improved by a noticeable margin.

                  Richard F.

                • Cardiologist paired Vascanox HP with Arterosil HP, my circulation improved drastically and cold hands stay warm through winter days.

                  Mark J.

                  • I take Arterosil HP paired with Vascanox HP daily, my overall blood circulation and cardiovascular wellness have boosted drastically as a perfect supplement bundle set.

                    Olivia R.

                  • After taking Arterosil HP for four full weeks, my perpetually cold numb hands stay warm all day, and my perpetually cold numb hands stay warm all day, and my doctor.

                    Linda M.

                  • Tried dozens of nitric oxide supplements before; only this professional grade formula keeps my resting blood pressure balanced naturally.

                    Brian F.

                  • Great value 60-count vegan bottle,Ireordered twice already as it relieves chronic fatigue tied to poor cardiovascular flow.

                    Patrick G.

                  • This exclusive natural seaweed extract solved my lifelong poor circulation issues; one tiny daily capsule slides down easily and never causes uncomfortable stomach irritation.

                    Robert T.

                  • The science-backed Monostroma algae extract repairs damaged arterial walls, and my post workout physical recovery speed has improved by a noticeable margin.

                    Richard F.

                  • Cardiologist paired Vascanox HP with Arterosil HP, my circulation improved drastically and cold hands stay warm through winter days.

                    Mark J.

                    FAQs

                    Can I take Vascanox HP and Arterosil HP together every day?

                    Totally! Calroy designed these two to work best as a pair. Just take both capsules together each morning with a glas of water.One boosts nitric oxide all day, the other fixes your blood vessel walls to help your body make more NO naturally. They share zero overlapping ingredients and won't clash with each other at all.

                    How many pills do I take daily? How long will this bundle last me?

                    The regular daily serving is 1 Vascanox HP capsule plus 1 Arterosil HP capsule. Each bottle has 60 vegan capsules, so the whole bundle gives you a full 30-day supply for one person.

                    Are these vegan, gluten-free and free of common allergens?

                    Yep, 100%. Both use plant based vegan capsules. No gluten, dairy, soy, GMOs, fake flavors or cheap filer ingredients. They're also made right here in US labs that follow strict cGMP quality rules.

                    What special patented ingredients are inside each supplement?

                    Vascanox HP features our unique Noxa24® blend of fermented black garlic, beets and berries. Arterosil HP uses patent protected MonitumRS® rhamnan sulfate sourced from rare green seaweed.

                    Who should skip this bundle or check with a doctor first?

                    Talk to your healthcare provider before you start if you take blood pressure meds, heart nitrates, blood thinners, or ED pills.We don't recommend this for pregnant or breastfeeding people, or anyone under 18. If you feel dizzy or lightheaded after taking them, stop using right away.

                    Can I take this bundle alongside my regular daily vitamins or other supplements?

                    We haven't seen any bad reactions when paired with regular multivitamins, magnesium, fish oil and other heart support pills.If you're on prescription medicine, always run it by your doctor first to stay safe.

                    How long until I feel more energy and better circulation?

                    Most folks feel less worn out and their hands/feet stay warmer after 1 to 2 weks of taking it daily. Fullong-term benefits for your blood vessels kick in after 30-60 days of consistent use, since your vessel lining heals slowly over time.

                    What's the best way to store these bottles?

                    Keep both bottles tightly sealed in a cool, dry spot out of direct sunlight. You don't need to put them in the fridge. Make sure to store them somewhere kids can't reach.

                    Will Vascanox HP upset my sensitive stomach?

                    It's a gentle plant formula that works for most people with sensitive digestion. If your stomach gets upset easily, take the capsules with a meal to avoid mild discomfort.