# Solidago virgaurea **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/solidago-virgaurea **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 6 / 10 **Category:** European **Also Known As:** Solidago virgaurea, European goldenrod, Common goldenrod, Woundwort, Aaron's rod, Blue mountain tea, Goldruthe, Verge d'or ## Overview Solidago virgaurea (European goldenrod) is a medicinal herb containing saponins, flavonoids, and phenolic acids that primarily exhibits [anti-inflammatory](/ingredients/condition/inflammation) and [antimicrobial](/ingredients/condition/immune-support) properties. The plant works through inhibition of inflammatory mediators and demonstrates potential activity against oral pathogens and cancer cell lines. ## Health Benefits • May help reduce oral candidiasis symptoms - one small clinical trial (n=22) showed improvements in gum irritation and bleeding when used in toothpaste (limited evidence) • Potential antitumor activity - preclinical studies demonstrated cytotoxicity against prostate and breast cancer cell lines in vitro and tumor suppression in mice (preliminary evidence only) • [Cardiovascular](/ingredients/condition/heart-health) protection - animal studies showed reduction in cholesterol, triglycerides, and [oxidative stress](/ingredients/condition/antioxidant) markers in rats with induced cardiotoxicity (no human data) • Traditional urinary tract support - historically used for UTI prophylaxis, though modern studies show it may antagonize common UTI antibiotics (traditional use, negative interaction data) • [Anti-inflammatory](/ingredients/condition/inflammation) and antioxidant effects - review literature cites these properties based on non-clinical studies (preliminary evidence) ## Mechanism of Action Solidago virgaurea's bioactive compounds, particularly quercetin, rutin, and leiocarposide saponins, exert anti-inflammatory effects by inhibiting [pro-inflammatory cytokine](/ingredients/condition/inflammation)s and cyclooxygenase pathways. The flavonoids demonstrate [antimicrobial](/ingredients/condition/immune-support) activity against Candida species through disruption of fungal cell membrane integrity. Phenolic compounds may induce apoptosis in cancer cells via [oxidative stress](/ingredients/condition/antioxidant) pathways and cell cycle arrest. ## Clinical Summary Clinical evidence for Solidago virgaurea remains limited to one small trial of 22 participants examining its effects in toothpaste formulation for oral candidiasis. This study showed improvements in gum irritation and bleeding symptoms, though the evidence quality is low due to small sample size. Preclinical laboratory studies have demonstrated cytotoxic effects against prostate and breast cancer cell lines, but no human cancer trials exist. Most research consists of in vitro studies examining [antimicrobial](/ingredients/condition/immune-support) and [anti-inflammatory](/ingredients/condition/inflammation) properties. ## Nutritional Profile Solidago virgaurea (European Goldenrod) is a medicinal herb rather than a dietary food source, so conventional macronutrient profiling is limited; it is not consumed in meaningful caloric quantities. Key bioactive compounds are the primary nutritional-pharmacological focus: Flavonoids: rutin (quercetin-3-rutinoside) reported at approximately 0.5–1.5% dry weight, quercetin, kaempferol, and isorhamnetin glycosides; these are the dominant polyphenolic constituents. Saponins: oleanolic acid and its glycosides (virgaureasaponins 1–6) at approximately 2–5% dry weight in aerial parts, along with leiocarposide and solidagosaponins — these are considered primary bioactive drivers. Phenolic acids: chlorogenic acid, caffeic acid, and hydroxycinnamic acid derivatives present at approximately 0.5–2% dry weight. Diterpenes: including solidagenone and related kaurane-type diterpenes. Tannins: hydrolysable and condensed tannins at approximately 5–10% in aerial parts. Essential oil: trace quantities (0.1–0.5%), containing alpha-pinene, limonene, and germacrene D. Inulin-type fructooligosaccharides present in roots. Fiber: present in plant matrix but not quantified for supplemental use. Vitamins and minerals: not characterized in therapeutic-grade extracts; not a meaningful dietary source. Bioavailability notes: Rutin has low oral bioavailability (~20%) unless hydrolyzed to quercetin in the gut; saponins may enhance permeability of co-administered compounds; standardized extracts typically normalized to flavonoid or saponin content for reproducibility. ## Dosage & Preparation Clinical dosing data is sparse. The only human study used S. virgaurea extract in toothpaste applied twice daily for 2-3 weeks (exact extract amount unspecified). Animal studies used 250 mg/kg orally in rats and 5 mg/kg injections in mice. No standardized human oral dosages have been established. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Solidago virgaurea is generally well-tolerated when used topically or as directed, with no serious adverse events reported in available studies. Potential allergic reactions may occur in individuals sensitive to plants in the Asteraceae family, including ragweed or chrysanthemums. No significant drug interactions have been documented, though theoretical interactions with anticoagulant medications are possible due to flavonoid content. Safety during pregnancy and breastfeeding has not been established through clinical studies. ## Scientific Research Human clinical evidence is extremely limited, with only one randomized, double-blind trial (n=22) examining S. virgaurea extract in toothpaste for oral candidiasis, showing modest improvements in oral symptoms after 2-3 weeks. Most research remains preclinical, including in vitro tumor cytotoxicity studies and rat cardiotoxicity models at 250 mg/kg doses. No PMIDs were provided in the research dossier. ## Historical & Cultural Context Solidago virgaurea has been used in European folk medicine for centuries as a diuretic, [anti-inflammatory](/ingredients/condition/inflammation), and urinary tract remedy. Traditional ethnomedicinal applications included treatment of wounds, rheumatism, and infections, with historical records spanning traditional European healing systems. ## Synergistic Combinations Cranberry extract, D-mannose, Uva ursi, Vitamin C, [Probiotic](/ingredients/condition/gut-health)s ## Frequently Asked Questions ### What is the active ingredient in Solidago virgaurea? The main active compounds include quercetin and rutin (flavonoids), leiocarposide (saponin), and various phenolic acids. These compounds are responsible for the herb's anti-inflammatory and antimicrobial properties demonstrated in laboratory studies. ### How much Solidago virgaurea should I take daily? No standardized dosage exists due to limited clinical research. The only human study used it in toothpaste formulation rather than oral supplementation. Traditional herbalism suggests 1-2 grams of dried herb daily, but consult a healthcare provider before use. ### Can Solidago virgaurea treat cancer? Laboratory studies show cytotoxic effects against prostate and breast cancer cell lines, but no human cancer trials exist. This preliminary research cannot support cancer treatment claims, and it should never replace conventional cancer therapy. ### Is European goldenrod the same as American goldenrod? No, Solidago virgaurea (European goldenrod) differs chemically from American Solidago species like S. canadensis. European goldenrod contains higher concentrations of leiocarposide saponins and has different traditional medicinal uses than its American counterparts. ### What side effects does Solidago virgaurea cause? Side effects are rare and typically limited to allergic reactions in sensitive individuals, particularly those allergic to Asteraceae family plants. Topical use may cause contact dermatitis in some people, but no serious adverse events have been reported in studies. ### Does Solidago virgaurea interact with diuretic medications? Solidago virgaurea has mild diuretic properties and may have additive effects when combined with prescription diuretics, potentially increasing potassium loss or affecting electrolyte balance. If you take diuretic medications for hypertension or heart conditions, consult your healthcare provider before using Solidago virgaurea supplements. Monitoring of kidney function and electrolytes may be advisable with concurrent use. ### Is Solidago virgaurea safe during pregnancy and breastfeeding? There is insufficient clinical data on the safety of Solidago virgaurea during pregnancy and breastfeeding, so it is generally recommended to avoid use during these periods as a precaution. Traditional herbalists have used it cautiously in some cultures, but modern evidence does not support its safety profile for pregnant or nursing women. Consult a healthcare provider before considering use if you are pregnant or breastfeeding. ### What does the clinical evidence show about Solidago virgaurea for urinary tract health? Several European clinical trials and observational studies suggest Solidago virgaurea may support urinary tract comfort and promote healthy urinary function, though most studies are small (n=20–50) and lack rigorous double-blind controls. The herb has been used in traditional European phytotherapy for centuries for this purpose, and German and Swiss health authorities recognize it for minor urinary complaints. However, high-quality randomized controlled trials comparing it to standard treatments remain limited, so evidence strength is considered moderate rather than strong. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*