# Periwinkle (Vinca minor)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/periwinkle
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-20
**Evidence Score:** 2 / 10
**Category:** European
**Also Known As:** Vinca minor, Lesser periwinkle, Dwarf periwinkle, Common periwinkle, Myrtle, Wintergreen, Grave myrtle, Sorcerer's violet

## Overview

Periwinkle (Vinca minor) is a European herb whose primary bioactive alkaloid, vincamine, acts as a cerebral vasodilator by blocking calcium channels and relaxing smooth muscle in blood vessels. It is studied primarily for its potential to enhance cerebral circulation and provide [neuroprotective effect](/ingredients/condition/cognitive)s, though most evidence remains preclinical or limited to small human trials.

## Health Benefits

• May improve cerebral blood flow through vincamine's vasorelaxant and calcium channel blocking effects (preclinical evidence only)
• Demonstrates [antioxidant activity](/ingredients/condition/antioxidant) with DPPH scavenging values of 737-1123 mg GAE/100g (in vitro studies)
• Shows potential [neuroprotective effect](/ingredients/condition/cognitive)s through cholinesterase inhibition (in vitro data)
• Traditional use for reducing excessive menstruation and bleeding (historical evidence only)
• May help with hemorrhoids and bleeding ulcers as an astringent (traditional use, no clinical trials)

## Mechanism of Action

Vincamine, the primary indole alkaloid in Vinca minor, inhibits voltage-gated L-type calcium channels in vascular smooth muscle, reducing intracellular calcium and producing vasorelaxation in cerebral arteries. Its semi-synthetic derivative vinpocetine additionally inhibits phosphodiesterase type 1 (PDE1), elevating cAMP and cGMP levels to further promote vasodilation and reduce platelet aggregation. Vincamine also inhibits acetylcholinesterase activity, which may preserve cholinergic neurotransmission and contribute to observed [neuroprotective effect](/ingredients/condition/cognitive)s in preclinical models.

## Clinical Summary

The bulk of evidence supporting Vinca minor's cerebrovascular effects comes from in vitro studies and animal models rather than large-scale randomized controlled trials. Small human studies using vincamine at doses of 30–60 mg daily have reported modest improvements in [cognitive performance](/ingredients/condition/cognitive) and cerebral blood flow in elderly patients with mild cognitive impairment, though sample sizes rarely exceed 50–100 participants. The plant's [antioxidant](/ingredients/condition/antioxidant) capacity has been quantified in vitro at 737–1123 mg GAE/100g via DPPH scavenging assays, but this has not been directly translated into confirmed clinical antioxidant outcomes. Overall, the evidence base is preliminary and insufficient to support definitive therapeutic claims without larger, placebo-controlled trials.

## Nutritional Profile

Periwinkle (Vinca minor) is a medicinal herb rather than a food source, so conventional macronutrient profiling is not applicable; it is not consumed for caloric or macronutrient value. Bioactive alkaloid content dominates its chemical profile: vincamine (0.25–0.65% dry weight of aerial parts) is the primary pharmacologically active indole alkaloid, alongside vinpocetine (a semi-synthetic derivative of vincamine used in supplements), minovincine, vincaminoreine, and isovincamine at trace concentrations (<0.1% dry weight). Flavonoid content is notable, with total polyphenols measured at 737–1123 mg GAE/100g dry weight, contributing to documented DPPH radical scavenging activity; quercetin, kaempferol glycosides, and chlorogenic acid derivatives are among the identified phenolic constituents. Tannins (condensed and hydrolyzable) are present at approximately 3–6% dry weight, contributing to astringent properties and hemostatic traditional use. Ursolic acid and oleanolic acid (pentacyclic triterpenes) are present at low concentrations (~0.1–0.3% dry weight). Carotenoids are present in leaf tissue at levels typical of leafy green plants (~50–150 µg/g fresh weight), though no detailed fractionation data specific to Vinca minor is widely published. Mineral content includes calcium, potassium, and magnesium at levels comparable to other small-leaved herbaceous plants, but precise quantified data is lacking in the literature. Bioavailability of vincamine via oral ingestion is estimated at 60–70% based on pharmacokinetic studies of isolated compound; whole-plant alkaloid bioavailability is less characterized. The plant is not a meaningful dietary source of vitamins, fiber, or protein in any practical therapeutic dosing context.

## Dosage & Preparation

No clinically studied dosage ranges for Vinca minor extracts, powders, or standardized forms are available. Preclinical studies reference 5-10 mg/kg IV of mixed alkaloids in rats, but no standardized oral doses for humans have been established. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Vinca minor and isolated vincamine are generally considered low-risk at recommended doses, but high doses may cause nausea, headache, dizziness, and hypotension due to their vasoactive properties. Significant drug interactions exist with antihypertensive medications, anticoagulants, and antiplatelet agents such as warfarin and aspirin, as vincamine's vasodilatory and platelet-inhibiting effects can potentiate bleeding risk. Vincamine may also interact with drugs metabolized by CYP3A4 enzymes, potentially altering plasma concentrations. Periwinkle is contraindicated during pregnancy and breastfeeding due to insufficient safety data and the known cytotoxic alkaloid content present in the whole plant.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses for Vinca minor were found in the research dossier. Available evidence is limited to preclinical studies showing vincamine's vasorelaxant effects and calcium channel blocking in cerebral perfusion models, plus in vitro [antioxidant](/ingredients/condition/antioxidant) and cholinesterase inhibition data.

## Historical & Cultural Context

In European traditional medicine, Vinca minor has been used for centuries as an internal astringent for excess menstruation, hemorrhoids, bleeding ulcers, and diarrhea. Unlike Catharanthus roseus (Madagascar periwinkle), it lacks traditional antineoplastic claims and has been valued primarily for its antihemorrhagic properties.

## Synergistic Combinations

Ginkgo biloba, Bacopa monnieri, Lion's mane, Rhodiola rosea, Phosphatidylserine

## Frequently Asked Questions

### What is vincamine and how does it differ from vinpocetine?

Vincamine is a naturally occurring indole alkaloid extracted directly from Vinca minor leaves, acting primarily as a cerebral vasodilator through calcium channel blockade. Vinpocetine is a semi-synthetic derivative of vincamine that additionally inhibits PDE1 enzymes, making it more potent at raising cAMP/cGMP levels and reducing neuronal inflammation, which is why vinpocetine is more commonly used in supplements than raw vincamine.

### Can periwinkle improve memory or cognitive function?

Small clinical studies using vincamine at 30–60 mg per day have shown modest improvements in memory and cognitive scores in elderly subjects with mild cognitive decline, likely linked to improved cerebral blood flow and acetylcholinesterase inhibition. However, these trials involved fewer than 100 participants and lacked rigorous placebo controls, so periwinkle cannot currently be recommended as a proven cognitive enhancer based on the available evidence.

### What is the recommended dosage of periwinkle or vincamine?

Studies examining vincamine's cerebrovascular effects have typically used oral doses of 30–60 mg per day, divided into two or three administrations. Standardized Vinca minor extracts are often calibrated to contain 25–30% vincamine by weight, but no universally established therapeutic dosage exists because regulatory approval for vincamine as a drug varies by country and clinical trial data remain limited.

### Is periwinkle safe to take with blood pressure medication?

Periwinkle and vincamine should not be combined with antihypertensive drugs without medical supervision, as their calcium channel blocking and vasorelaxant mechanisms can produce additive blood pressure lowering, potentially causing hypotension, dizziness, or fainting. The interaction risk is particularly notable with calcium channel blocker medications such as amlodipine or verapamil, which share a similar mechanism of action with vincamine.

### How does periwinkle compare to ginkgo biloba for brain health?

Both periwinkle (via vincamine) and ginkgo biloba target cerebral blood flow, but through different mechanisms: vincamine acts via calcium channel blockade and PDE1 inhibition, while ginkgo's active flavonoids and terpenoids work primarily through platelet-activating factor (PAF) antagonism and free radical scavenging. Ginkgo biloba has a substantially larger body of clinical research, including several randomized controlled trials with hundreds of participants, whereas vincamine's human trial data is far more limited, making ginkgo the better-evidenced option at this time.

### Is periwinkle safe during pregnancy and breastfeeding?

Periwinkle is not recommended during pregnancy or breastfeeding due to its traditional use in reducing menstrual bleeding and potential alkaloid content that may affect hormonal or uterine function. Pregnant and nursing women should consult a healthcare provider before considering periwinkle supplementation. There is insufficient clinical safety data in these populations to establish safe dosing guidelines.

### What does clinical research actually show about periwinkle's brain health effects?

Most evidence for periwinkle's cognitive benefits comes from in vitro and animal studies showing antioxidant activity and potential cholinesterase inhibition rather than robust human clinical trials. While vincamine (a purified alkaloid from periwinkle) has been studied in some European clinical settings for cerebral blood flow, direct human evidence for whole periwinkle herb supplementation remains limited. The antioxidant data (737–1123 mg GAE/100g) is promising in laboratory conditions but does not directly translate to measurable cognitive improvements in people.

### Does periwinkle interact with blood thinners or anticoagulant medications?

Periwinkle's traditional use for reducing menstrual bleeding and its potential vascular effects raise theoretical concerns about interaction with anticoagulants (such as warfarin or newer blood thinners), though specific clinical interaction data is limited. Individuals taking blood thinners should inform their healthcare provider before using periwinkle supplements, as combined use may amplify bleeding risk or interfere with medication efficacy. Direct pharmacokinetic studies on periwinkle-anticoagulant interactions in humans are not well-documented.

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