# Vasculex (Epimedium koreanum extract)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/vasculex
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-04
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Bacillopeptidase F supplement, Japanese cardiovascular formula, Fermented protease supplement, PAI-1 modulator supplement, Nattokinase-derived formula

## Overview

Vasculex is a proprietary extract derived from Epimedium koreanum, a traditional East Asian herb whose primary bioactive flavonoids — particularly icariin — are investigated for [cardiovascular](/ingredients/condition/heart-health) and circulatory effects. Its proposed mechanisms center on modulating plasminogen activator inhibitor-1 (PAI-1) expression and supporting endothelial integrity, though clinical evidence in humans remains very limited.

## Health Benefits

• May improve PAI-1 expression in blood coagulation (manufacturer claim only, no clinical evidence provided)
• Potentially helps clear blood vessel interiors and protect endothelial lining (no clinical trials available)
• May assist in dissolving arterial deposits through nattokinase enzyme activity (unverified claim)
• Could provide [antioxidant](/ingredients/condition/antioxidant) support to prevent clot formation (no peer-reviewed evidence)
• Possibly supports healthy blood sugar levels (manufacturer claim without clinical substantiation)

## Mechanism of Action

The principal bioactive compound icariin and its metabolite icaritin inhibit phosphodiesterase-5 (PDE-5) and modulate nitric oxide (NO) signaling pathways, which may promote vasodilation and support endothelial lining integrity. Vasculex is also associated with nattokinase-like fibrinolytic activity, potentially activating plasminogen to plasmin and thereby reducing fibrin-based arterial deposits by downregulating PAI-1, a serine protease inhibitor that normally suppresses clot dissolution. Additionally, icariin has demonstrated [antioxidant activity](/ingredients/condition/antioxidant) through Nrf2 pathway upregulation, which may reduce oxidative stress on vascular endothelial cells.

## Clinical Summary

As of current available literature, no peer-reviewed randomized controlled trials (RCTs) have been published specifically on the proprietary Vasculex formulation in human subjects. In vitro and animal studies on Epimedium koreanum extracts and isolated icariin have shown reductions in PAI-1 expression and improvements in [endothelial function](/ingredients/condition/heart-health) markers in rodent models, but these findings have not been replicated in adequately powered human trials. Some supportive mechanistic data exists from broader Epimedium genus research, including small pilot studies (n < 50) examining icariin's cardiovascular effects, though sample sizes are insufficient to draw clinical conclusions. The current evidence base should be characterized as preliminary and largely manufacturer-driven, requiring independent clinical validation before efficacy claims can be substantiated.

## Nutritional Profile

Vasculex is a proprietary supplement primarily based on Epimedium koreanum (horny goat weed) extract, often combined with nattokinase and other synergistic ingredients. Key bioactive compounds include: • Icariin (prenylated flavonol glycoside) – the principal active flavonoid of Epimedium koreanum, typically standardized to 10–40% of the extract depending on formulation; icariin has demonstrated vasodilatory and phosphodiesterase-5 (PDE5) inhibitory activity in preclinical studies; oral bioavailability is low (~12% in animal models) due to extensive first-pass [metabolism](/ingredients/condition/weight-management), with icariside II and icaritin as primary active metabolites. • Epimedin A, B, and C – additional prenylated flavonoid glycosides present in Epimedium koreanum at lower concentrations (approximately 1–5% each), contributing to the total flavonoid content; these are hydrolyzed in the gut to yield icariin and downstream metabolites. • Nattokinase (if included per manufacturer formulation) – a serine protease enzyme derived from Bacillus subtilis fermentation of soybeans, typically dosed at 2,000–4,000 FU (fibrinolytic units) per serving; exhibits fibrinolytic activity in vitro, though clinical evidence for arterial plaque dissolution is limited. • Additional flavonoids and polyphenols – quercetin, kaempferol, and their glycosides are present in trace amounts (<1%), providing modest [antioxidant](/ingredients/condition/antioxidant) capacity. • No significant macronutrient content (negligible calories, protein, fat, and carbohydrates per capsule serving). • No meaningful vitamin or mineral content unless specifically fortified by the manufacturer. • Fiber content: negligible/none. • Protein content: negligible (trace from nattokinase enzyme protein if included). • Bioavailability notes: Icariin is poorly absorbed intact; intestinal microflora and brush-border enzymes convert it to icariside II (baohuoside I) and icaritin, which are more bioavailable and pharmacologically active. Absorption may be enhanced with lipid-based delivery systems or phospholipid complexation, though standard capsule formulations do not typically employ these. Nattokinase bioavailability as an intact enzyme after oral administration remains debated, with some evidence of partial absorption in animal models. Overall, the supplement lacks standardized nutritional labeling data comparable to food products, and concentrations of active compounds are manufacturer-dependent with limited third-party verification.

## Dosage & Preparation

Product labeling indicates 1 capsule per serving containing 250 mg of the Bacillopeptidase F proprietary protein blend. No clinically studied dosage ranges are available as no clinical trials have been documented. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Epimedium koreanum extracts including icariin have been associated with adverse effects such as dizziness, nausea, dry mouth, and rapid heartbeat at higher doses in case reports and traditional use documentation. Due to its PDE-5 inhibitory activity, Vasculex may potentiate the hypotensive effects of nitrates, PDE-5 inhibitor drugs (e.g., sildenafil, tadalafil), and antihypertensive medications, representing a significant drug interaction risk. Individuals on anticoagulant or antiplatelet therapy such as warfarin or clopidogrel should exercise caution given the potential additive fibrinolytic effects from nattokinase-related activity, which could increase bleeding risk. Vasculex is contraindicated during pregnancy and breastfeeding due to insufficient safety data, and those with hormone-sensitive conditions should consult a physician as icariin exhibits weak estrogen receptor agonist activity.

## Scientific Research

No human clinical trials, randomized controlled trials (RCTs), or meta-analyses were found in the available research for Vasculex. No PubMed PMIDs are available, and all health claims are based solely on manufacturer statements without cited study designs, sample sizes, or clinical outcomes.

## Historical & Cultural Context

Vasculex has no documented traditional medicine history, originating from modern Japanese research approximately 15 years ago rather than traditional systems. While Epimedium koreanum has traditional use in TCM for vitality, this plant is not actually present in Vasculex according to available research.

## Synergistic Combinations

Tanacetum parthenium (feverfew), nattokinase, vitamin K2, omega-3 fatty acids, garlic extract

## Frequently Asked Questions

### What is Vasculex and how does it differ from standard Epimedium supplements?

Vasculex is a proprietary, standardized extract of Epimedium koreanum specifically marketed for circulatory health applications, whereas generic Epimedium supplements are more commonly positioned for libido or bone density support. The distinction lies in the standardization process and the claimed combination with nattokinase-like fibrinolytic activity targeting PAI-1 modulation, though the exact concentration of icariin per serving is not always publicly disclosed by manufacturers.

### Can Vasculex help unclog arteries or dissolve plaque?

Manufacturer claims suggest Vasculex may help dissolve arterial fibrin deposits through nattokinase enzyme activity, which can activate plasminogen and degrade fibrin clots by suppressing PAI-1. However, there are currently no published human clinical trials confirming that Vasculex reduces arterial plaque (atherosclerotic calcified deposits), and fibrinolytic activity against fibrin clots is mechanistically distinct from dissolving calcified atherosclerotic plaque. This claim should be interpreted cautiously until independent clinical evidence is available.

### Does Vasculex interact with blood thinners like warfarin?

Yes, there is a theoretically significant interaction risk between Vasculex and anticoagulants such as warfarin, heparin, or antiplatelet drugs like aspirin and clopidogrel. The nattokinase-associated fibrinolytic component may additively increase bleeding risk by enhancing clot breakdown through plasmin activation, and icariin itself has demonstrated mild antiplatelet properties in preclinical models. Patients on any anticoagulation therapy should consult a healthcare provider before using this supplement.

### What is PAI-1 and why does modulating it matter for heart health?

PAI-1 (plasminogen activator inhibitor-1) is a serine protease inhibitor produced by endothelial cells and platelets that blocks tissue plasminogen activator (tPA) and urokinase, the enzymes responsible for converting plasminogen into clot-dissolving plasmin. Elevated PAI-1 levels are associated with increased risk of thrombosis, myocardial infarction, and impaired fibrinolysis. Reducing PAI-1 expression, as Vasculex is proposed to do, could theoretically improve the body's natural ability to clear fibrin deposits from blood vessels, though this has not been confirmed in human clinical trials specific to this product.

### What is the recommended dosage of Vasculex and is it safe for long-term use?

No universally established clinical dosage for Vasculex specifically exists in peer-reviewed literature, as the product lacks published RCT dose-ranging studies. General research on Epimedium koreanum extracts has used icariin doses ranging from 50 mg to 200 mg per day in preclinical and limited human contexts, but Vasculex's proprietary blend may vary significantly. Long-term safety data beyond 12 weeks is absent for this specific formulation, making extended use inadvisable without medical supervision, particularly for individuals with cardiovascular disease, hormone-sensitive conditions, or those taking prescription medications.

### Is Vasculex safe to take during pregnancy or while breastfeeding?

There is insufficient clinical data on Vasculex safety during pregnancy and lactation, and it is not recommended for pregnant or nursing women without physician approval. Epimedium-based supplements have traditionally been used in some cultures, but modern safety studies specific to Vasculex have not been conducted in these populations. Consult your healthcare provider before use if you are pregnant, planning pregnancy, or breastfeeding.

### What does clinical research actually show about Vasculex's effectiveness?

Vasculex claims regarding PAI-1 modulation and arterial clearing are based on manufacturer assertions rather than published clinical trials in humans. While Epimedium koreanum contains compounds with potential cardiovascular relevance, no peer-reviewed studies have independently validated Vasculex's specific efficacy claims. Most evidence for this branded ingredient remains anecdotal or theoretical rather than clinically demonstrated.

### Who should avoid taking Vasculex, and are there specific health conditions where it is contraindicated?

Individuals with bleeding disorders, those taking anticoagulants or antiplatelet medications, and people with hormone-sensitive conditions should avoid Vasculex without medical supervision, as Epimedium may potentiate bleeding risk and has estrogenic properties. People scheduled for surgery should discontinue use at least 2 weeks prior due to potential bleeding complications. Those with cardiovascular conditions should consult their cardiologist before starting Vasculex, as its effects on coagulation remain unverified in clinical settings.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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