ReVasca™ vs Arterosil HP®
Two glycocalyx supplements. One shared beginning.
Arterosil was the first formula Robert Long developed with Dr. Hans Vink to support the endothelial glycocalyx. It is made and sold today by another company. ReVasca™ is the Institute’s third-generation formula, built on twelve more years of research and measured with the same GlycoCheck™ imaging used in the published studies. Here is how the two compare, fact by fact.
Arterosil HP® and MonitumRS® are registered trademarks of Calroy Health Sciences, LLC, which is not affiliated with the GlycoCalyx Research Institute. Arterosil details are taken from Calroy’s public website and authorized-retailer listings, checked October 2026.
Same goal. Different generation, breadth and proof.
Both products exist because the endothelial glycocalyx — the thin, sugar-rich gel lining every blood vessel — is worth protecting. The differences are in who makes them, what is in them, and whether the result can be measured.
Origin
Arterosil laid the groundwork. Further research led to Endocalyx Pro in 2012, and twelve more years of research produced ReVasca™. Robert Long and Dr. Hans Vink, who developed the original formula, formulate and validate ReVasca™ at the GlycoCalyx Research Institute.
Formula
Arterosil HP® is built around one active: rhamnan sulfate from a green seaweed, in a 900 mg blend with fruit and vegetable extracts. ReVasca™ capsules carry a 2,750 mg blend of seven actives chosen against the Institute’s five-lever brief: nitric oxide signalling, oxidative-stress buffering, healthy inflammatory tone, healthy blood viscosity, and building blocks for the glycocalyx mesh.*
Measurement
ReVasca™ comes from the team that built GlycoCheck™, the non-invasive imaging system used in hundreds of peer-reviewed studies. You can measure your own microvascular health before and after, rather than take anyone’s word for it.
ReVasca™ vs Arterosil HP®, fact by fact
Everything in the Arterosil column comes from Calroy’s own website or its authorized retailers, checked October 2026. Where Calroy does not publish a figure, we say so.
| ReVasca™ | Arterosil HP® | |
|---|---|---|
| Made by | The GlycoCalyx Research Institute (Lehi, Utah) — formulated by Robert Long, validated by Dr. Hans Vink. | Calroy Health Sciences, LLC (Scottsdale, Arizona). |
| Lineage | Third-generation formula: Arterosil → Endocalyx Pro (2012) → ReVasca™. | The original glycocalyx formula, developed by Robert Long with Dr. Hans Vink; now owned, made and marketed by Calroy. |
| Approach | Multi-pathway, for the whole circulation from the large arteries to the capillaries. Robert Long’s design brief names five levers: endothelial nitric oxide, oxidative-stress buffering, healthy inflammatory tone, healthy blood viscosity, and components that nurture the glycocalyx mesh.* | Single-active: rhamnan sulfate (MonitumRS®) for the glycocalyx, with a fruit-and-vegetable antioxidant blend. |
| Active ingredients | Seven actives, 2,750 mg per four-capsule serving: L-Citrulline, Fucoidan (85%), ViNitrox®, Vascaman™ organic inner-leaf aloe vera, Hyaluronic Acid, Catalase, Superoxide Dismutase. | Proprietary blend, 900 mg per serving: MonitumRS® green seaweed extract (Monostroma nitidum), grape seed/skin, green tea and about twenty fruit and vegetable extracts.The rhamnan sulfate amount is not disclosed separately. |
| Glycocalyx building blocks | Fucoidan (a sulphated polysaccharide from brown seaweed), hyaluronic acid (a native glycocalyx glycosaminoglycan) and aloe polysaccharides.* | Rhamnan sulfate (a sulphated polysaccharide from green seaweed). |
| Nitric oxide support | Yes — L-Citrulline and ViNitrox® grape-and-apple polyphenols.* | Not a stated design goal of Arterosil HP®; Calroy sells a separate nitric oxide product. |
| Antioxidant enzymes | Catalase and superoxide dismutase.* | None listed; antioxidant support comes from plant extracts. |
| Daily dose | Four capsules, or one scoop of grape drink mix in 8–12 oz of water. | Two capsules, one morning and one evening, with a meal. |
| Formats | Capsules (120) or grape drink mix (30 scoops), with the same 2,750 mg blend of seven actives in four capsules or one scoop. | Capsules only (60). |
| Servings per container | 30 · one month. | 30 · one month. |
| Third-party certification | Informed Sport certified, both formats — every batch tested for banned substances by an ISO/IEC 17025-accredited laboratory. Made in the USA in an FDA-registered facility operating under cGMP. | No third-party certification programme listed. Calroy states that every batch “is produced under Calroy’s Total Quality System, with strict compliance to FDA-defined current Good Manufacturing Practices (cGMP)”, and that batch and test records are maintained. |
| Dietary notes | Non-GMO, gluten-free. Contains soy (the superoxide dismutase source). Drink mix is sweetened with stevia. | Vegan, non-GMO; stated free of gluten, dairy, soy and major allergens. |
| Measurement | Designed alongside GlycoCheck™, the Institute’s non-invasive imaging system; test before and after at a GlycoCheck location. | No measurement system of its own. |
| Published research | The Institute’s peer-reviewed work on fucoidan-containing glycocalyx supplements and on GlycoCheck imaging is indexed in our research library. Individual ReVasca™ results are documented with GlycoCheck™ scores. | Calroy cites a 2023 third-party in-vitro (laboratory) study of rhamnan sulfate and a six-person, six-month case series by a Calroy board member. |
| Price per month | $99.95 one-time · $89.96 on subscription (10% off every order). 3-Pack $269.95. | $99.00 one bottle · $94.05 on subscription (5% off) · $267.30 for three bottles · $948.00 for twelve ($79.00 each), on calroy.com.Nitric-oxide support needs a second product: Vascanox HP® at $69.00, or $151.20 for Calroy’s two-bottle bundle ($143.64 on subscription). |
| Guarantee & shipping | 30-day returns on unopened product, at your cost for return shipping. Opened product is not returned; if it is not working for you, contact us and we will help. Free US shipping over $150.See our refund policy. | 45-day money-back guarantee; free standard shipping. |
Arterosil HP® figures were checked October 2026 against Calroy’s product page and education articles and against authorized retailers (Designs for Health, Healthy Habits Living, Pine Street Clinic). Formulations, claims and prices can change; check the manufacturer’s site for the current label. ReVasca™ figures are from our own label and store.
Seven actives versus one.
Both formulas lean on a sulphated polysaccharide from seaweed, because those molecules resemble the glycosaminoglycans that make up much of the glycocalyx. ReVasca™ then adds what the vessel wall needs around it: the signal to relax, and protection from oxidative stress.*
ReVasca™
Proprietary blend 2,750 mg per 4 capsules or 1 scoop · 30 servings
- L-CitrullineConverted to L-arginine, the precursor for nitric oxide.*
- Fucoidan (85%)Sulphated polysaccharide from brown seaweed; structurally similar to glycocalyx glycosaminoglycans.*
- ViNitrox® (apple & grape polyphenols)Standardised grape-and-apple polyphenols for nitric oxide availability.*
- Vascaman™ organic inner-leaf aloe veraThe Institute’s acetylated-polysaccharide source.*
- Hyaluronic acidA glycosaminoglycan found natively in the glycocalyx.*
- Catalase and superoxide dismutaseAntioxidant enzymes that protect the vessel lining.*
Other ingredients (capsules): hypromellose (capsule), white rice flour. Contains soy. ViNitrox® is a registered trademark of Nexira.
Arterosil HP®
Proprietary blend 900 mg · 2 capsules · 30 servings
- MonitumRS® green seaweed extract (Monostroma nitidum)Rhamnan sulfate, a sulphated polysaccharide; amount not disclosed separately.
- Grape seed and skin extract, green tea leaf extractPolyphenol antioxidants.
- Fruit and vegetable extractsGrape pomace, tomato, carrot juice, bilberry, broccoli, cabbage, onion, garlic, grapefruit, asparagus, papaya, pineapple, strawberry, apple, apricot, cherry, orange, blackcurrant, olive, cucumber.
Other ingredients as listed by retailers: vegan capsule (hypromellose), microcrystalline cellulose, rice bran extract, peppermint, rice hull concentrate. Label text as published by Calroy and its retailers, October 2026.
From Arterosil to ReVasca™
ReVasca™ is not a copy of an existing product. It is the latest refinement in a line of formulas from the same two people, each informed by what GlycoCheck™ measurements taught them.
-
First formula
Arterosil
Robert Long, working with Dr. Hans Vink, develops the first glycocalyx-support formula. It lays the groundwork for everything that follows. Arterosil is now owned and marketed by Calroy Health Sciences.
-
2012
Endocalyx Pro & GlycoCheck™
Further research leads to Endocalyx Pro. The same year, Dr. Vink and Robert Long begin placing GlycoCheck™ in academic research hospitals to measure the glycocalyx directly.
-
2012–2024
Twelve years of measurement
GlycoCheck™ reaches 140+ research hospitals worldwide. Dr. Vink’s publications pass 250 papers and 16,000 citations, and the Institute co-authors mechanistic work on fucoidan-containing glycocalyx supplements.
-
Today
ReVasca™
The third and latest formula: seven actives for the glycocalyx, nitric oxide and antioxidant defence, in capsules or a grape drink mix, Informed Sport certified, and measurable with GlycoCheck™.*
Where they agree, and where they part ways
Where they agree
- The endothelial glycocalyx is central to vascular health, and a supplement can be designed to support it.*
- A sulphated polysaccharide from seaweed is a sensible core ingredient: rhamnan sulfate in Arterosil HP®, fucoidan in ReVasca™.
- Both are one-month containers of 30 servings, made in the USA under GMP, and priced around $100 a month at list.
- Both carry the standard FDA structure/function disclaimer, and neither is a medicine.
- Neither replaces the basics. Daily movement, balanced meals, sleep and stress recovery do more for the endothelium than any capsule, and both products are meant to sit on top of them.
Where ReVasca™ goes further
- Seven actives and 2,750 mg per four-capsule serving versus one active in a 900 mg blend: substrates for the glycocalyx, plus nitric oxide support and antioxidant enzymes.*
- Two formats, capsules or grape drink mix, at the same price.
- Informed Sport certification on every batch of both formats, on top of GMP manufacturing.
- A way to verify: GlycoCheck™ imaging from the same team, so the change can be measured on you.
- Subscribe & save 10% on every order, with 30-day returns on unopened products.
What people ask when comparing the two
Is ReVasca™ the same product as Arterosil?
No. They are different formulas from different companies. What they share is a beginning: the original Arterosil was developed by Robert Long with Dr. Hans Vink, and the two of them went on to formulate Endocalyx Pro and then ReVasca™ at the GlycoCalyx Research Institute. Arterosil HP® is made and sold today by Calroy Health Sciences.
Why does ReVasca™ contain seven ingredients instead of one?
Because the glycocalyx does not work alone. It needs building blocks (fucoidan, hyaluronic acid, aloe polysaccharides), the signal that lets vessels relax and open (nitric oxide, supported by L-Citrulline and ViNitrox®), and protection from the oxidative stress that degrades it (catalase and superoxide dismutase). ReVasca™ is designed to cover all three, from the large arteries to the capillaries.*
Can I switch from Arterosil HP® to ReVasca™?
Many customers have. If you take prescription medication, particularly blood-pressure or anticoagulant medication, or you are pregnant or nursing, talk to your practitioner before changing any supplement. If you have access to a GlycoCheck™ location, a baseline test before you switch gives you something objective to compare against after three months.
Should I take both?
We do not recommend stacking glycocalyx supplements. Both are built around a seaweed polysaccharide, so taking both mostly doubles the same ingredient class. Choose one, take it daily for at least three months, and measure.
Does ReVasca™ contain soy or gluten?
ReVasca™ is gluten-free and non-GMO. It contains soy, because its superoxide dismutase is derived from Glycine max. Arterosil HP® is stated by Calroy to be soy-free, so if you have a soy allergy this is a real difference to weigh.
How do I know it is working?
Measure it. GlycoCheck™ films blood flow through the capillaries under your tongue and scores your microvascular health in about three minutes, without needles. Test before you start; clinics typically retest between six and twelve weeks, and practitioners often see microvascular indices begin to move within the first one to three months. Many people report earlier, subjective signals first — warmer hands and feet, a more even energy curve through the day, better exercise endurance — but those are hints, not proof. Consistency matters more than timing. Find a GlycoCheck location →
Where does Endocalyx Pro fit in?
Endocalyx Pro is the second-generation formula in the same line. It followed Arterosil in 2012 and emphasised glycocalyx building blocks; it is marketed by Microvascular Health Solutions and is not a GlycoCalyx Research Institute product. ReVasca™ is the third generation and its successor, adding nitric oxide support and antioxidant enzymes to the glycocalyx substrates.*
Is there a best time of day to take ReVasca™?
Take the full daily serving — four capsules, with or without food (the label suggests two in the morning and two later), or one scoop in water — at whatever time you will keep to. Many people take it with breakfast or split it morning and evening; some prefer earlier in the day to align with activity. Consistency is what moves the measurement, not the hour.
Compare more
Built on the original. Measured with GlycoCheck™.*
Capsules or grape drink mix, one month or three, one-time or subscribed with 10% off every order, with 30-day returns on unopened products.
* These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
Arterosil HP® and MonitumRS® are registered trademarks of Calroy Health Sciences, LLC. Calroy Health Sciences is not affiliated with, and does not endorse, the GlycoCalyx Research Institute or ReVasca™. Information about Arterosil HP® is drawn from Calroy’s public website and authorized-retailer product listings as of October 2026, is provided for comparison only, and may change without notice. ViNitrox® is a registered trademark of Nexira. Vascaman™, ReVasca™ and GlycoCheck™ are trademarks of the GlycoCalyx Research Institute.