There are many supplements for heart health. 6 of the top for cardiovascular wellness include Arterosil HP®, Vascanox HP®, magnesium, CoQ10, omega-3 fatty acids, and Vitamins D3.* Cardiovascular health remains foundational to long-term wellness. While regular and consistent movement, a balanced diet, and stress management form the core of a heart‑healthy lifestyle, smart supplementation can further strengthen vascular and circulatory function.* Many effective strategies for cardiovascular health in 2026 are led by a healthcare provider and combine lifestyle changes, science-backed supplements, and medications where indicated by a practitioner. Although this list is not exhaustive, below are six of the best or most popular cardiovascular supplements known to support the vascular system, spanning both well-known staples and next‑generation innovations.* The research summary section provides a summary of the research, to help healthcare providers make decisions about what to use in wellness plans.*
| Supplement | Primary Focus | Research Summary |
| Arterosil HP® with MonitumRS® | Supports the endothelial glycocalyx, healthy circulation, artery walls, and a healthy heart* | https://practitioner-resources.com/research-on-rhamnan-sulfate-from-monostroma-nitidum/ |
| Vascanox HP® with Noxa24® | Supports healthy blood pressure in the normal range, nitric oxide production for up to 24 hours*† | https://practitioner-resources.com/research-on-nitric-oxide-and-the-vascularsystem/ |
| Magnesium | Aids on balancing calcium intake and supports many physiological processes, and deficiency is common | Conflicting data, multiple types of formulas with varying levels of research, and sub-group benefits that may not apply to other groups (2019 meta-analysis; 2022 randomized controlled trial) |
| Omega‑3 Fatty Acids (EPA & DHA) | Diets naturally high on omega-3s, like the Mediterranean diet, have powerful, well-documented cardiovascular benefits | Research is strong for dietary omega-3s, with mixed data on supplementation, esp. regarding dosage and composition of formula (2024 review; 2023 review) |
| Coenzyme Q10 | Plays a key role in energy production (ATP) and antioxidant synthesis (Stat Pearls summary) | Strong evidence for dietary supplementation benefiting blood flow (2024 review) |
| Vitamin D3 | Deficiency is widespread and correlated with health problems | Supplementation reveals inconsistent outcomes (2018 review), even in populations known to be deficient (2014 RCT) and dosing questions remain, particularly if high-dose boluses are most effective (2018 systematic review) |
†As measured by saliva NO test strips in an open label published study. This list is not exhaustive. Most practitioners will personalize wellness plans based on individual vascular needs and biomarker responses.
Arterosil HP with MonitumRS for Foundational Vascular Support*
Arterosil HP with MonitumRS supports the endothelial glycocalyx (EGX), which is a foundational structure for overall cardiovascular health.* MonitumRS has been scientifically shown to protect and restore glucose-damaged endothelial glycocalyx cells up 103.8% of baseline in just 24 hours.*†† Benefits of Arterosil HP® include:
- Supports a healthy heart*
- Supports vascular integrity and healthy circulation, helping blood move where it’s needed*
- Helps maintain healthy arteries, supporting cardiovascular resilience over time*
- Strengthens the endothelial glycocalyx, the body’s vascular foundation, critical for energy, endurance, and healthy aging*
††As demonstrated in an independent third-party laboratory in vitro study.
What is the Endothelial Glycocalyx?
The endothelial glycocalyx (EGX) is foundational for a healthy cardiovascular system. It is a slippery, gel-like lining that coats the interior of blood vessels. It plays a crucial role in maintaining healthy circulation, vascular elasticity, nutrient delivery, and barrier integrity. A strong and vital endothelial glycocalyx is the first line of defense for your entire vascular system. Starting with a strong EGX helps ensure that blood vessels allow for smooth and efficient delivery to every organ, tissue, and system in the body. When the endothelial glycocalyx is strong and healthy, every supplement you take or nutrient you eat is better able to reach its intended target and do its intended job. That is why having a healthy endothelial glycocalyx is a smart first step for people interested in supporting their cardiovascular health with supplements.* Before adding any supplement to your wellness plan, consult with your healthcare provider.
Vascanox HP with Noxa24 for Nitric Oxide Support for up to 24 Hours*†
Vascanox HP with Noxa24 is among the first supplements shown to increase nitric oxide levels for up to 24 hours with a single daily dose.† In a published open-label study, salivary nitric oxide levels remained elevated throughout the day and night. Research also connects adequate nitric oxide with optimal circulation, endurance, and cognitive performance, supporting whole-body vitality.* In an open-label, published study, a single dose of Vascanox HP® increased salivary nitric oxide levels for up to 24 hours.† The unique multi-pathway formula supports nitric oxide production, storage, and delivery for daily vitality and to support long-term cardiovascular resilience.* Vascanox HP:
- Supports a healthy cardiovascular system*
- Supports and maintain blood pressure in the normal range*
- Supports healthy circulation*
What is Nitric Oxide?
Nitric oxide is a molecule that is naturally produced inside of the body. It plays many crucial roles in human health, but one of the most important ones is vasodilation and constriction. This means that nitric oxide helps blood vessels relax and open up dynamically, in response to conditions within the body. The heart pumps and the body also constricts and compresses blood vessels in order to move blood where the body intends for it to go. Vasodilation is particularly important for microcirculation. Nitric oxide helps those tiniest blood vessels open up and directly feed blood, oxygen and nutrients to essential tissues like sexual organs, the brain, kidneys, and muscles. Nitric oxide production is important all hours of the day and night because the body never stops circulating blood, delivering nutrients and removing waste, even when you sleep.
For Healthcare Providers: Practical Guidance for Choosing and Using Cardiovascular Supplements
As the supplement landscape evolves, clinicians increasingly prioritize transparency and products backed by research on the full formulation. In 2026, practitioner best practices emphasize clinical dosing, validated formulations, and third‑party verification. Practical steps for integration:
- Begin with one or two focus nutrients (e.g., endothelial glycocalyx support*).
- Align choices with the individual’s current regimen and lab values.
- Monitor biomarkers at each follow‑up.
- Educate individuals on consistency, source quality, and realistic timelines for benefit.
Calroy Health Sciences provides clinicians with access to formula-specific studies, ongoing education, and clinical vascular health protocols to support evidence‑based cardiovascular wellness.
Frequently Asked Questions
Where do I start when thinking about cardiovascular supplements?
The best place to start is with talking about your unique situation with your healthcare provider and your health goals. Since the health of the endothelial glycocalyx (EGX) is so essential to overall vascular health, starting here is a great first step. Arterosil HP with MonitumRS supports the endothelial glycocalyx, and MonitumRS has been scientifically shown to protect and restore the endothelial glycocalyx.*†
How does CoQ10 support heart function?
CoQ10 helps generate cellular energy and provides antioxidant support within heart muscle cells, supporting cardiovascular health.*
What are the best supplements to support the endothelial glycocalyx?
Arterosil HP with MonitumRS supports the endothelial glycocalyx.* MonitumRS is scientifically shown to protect and restore the endothelial glycocalyx, as demonstrated in an independent third-party laboratory in vitro study.*†
What are the best supplements to support nitric oxide for up to 24 hours with a single dose?*††
Vascanox HP is a next-generation product providing nitric oxide support for up to 24 hours with a single dose.*†† Vascanox HP is powered by Calroy’s proprietary blend, Noxa24, to support the natural production, storage, and release of nitric oxide.* †As measured by saliva NO test strips in an open label published study. ††As demonstrated in an independent third-party laboratory in vitro study.
