Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Jin Ying Zi (Rosa laevigata) is an astringent herb containing high concentrations of tannins and vitamin C that strengthens bladder function and reduces urinary incontinence. Its astringent compounds constrict smooth muscle tissue and reduce inflammation in the urogenital tract.
Reported Benefits (Provisional)
Origin & History
Jin Ying Zi, or Rosa laevigata, is a species of rose native to China. The fruit is harvested and dried for medicinal use.
Research Narrative (Provisional)
There is limited scientific research on Jin Ying Zi, with most evidence coming from traditional use and anecdotal reports.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Jin Ying Zi (Rosa laevigata) fruit contains carbohydrates as the primary macronutrient (~60-70% of dry weight), predominantly fructose, glucose, and sucrose. Protein content is modest at approximately 3-5% dry weight, with fiber (pectin and cellulose) comprising roughly 15-20% dry weight, contributing to its astringent properties. Key micronutrients include Vitamin C (ascorbic acid) at approximately 200-400 mg/100g fresh weight, Vitamin A precursors (beta-carotene ~1.2-2.5 mg/100g), and Vitamin E (tocopherols ~5-10 mg/100g). Mineral content includes potassium (~300-400 mg/100g), calcium (~150-200 mg/100g), magnesium (~30-50 mg/100g), iron (~3-5 mg/100g), zinc (~0.5-1.0 mg/100g), and phosphorus (~80-120 mg/100g). Bioactive compounds are the most clinically significant constituents: polyphenols including ellagic acid (~50-100 mg/100g), quercetin, kaempferol, and rutin (~20-60 mg/100g total flavonoids); tannins (hydrolyzable type, including casuariin and pedunculagin) at approximately 5-15% dry weight, responsible for astringent and antimicrobial effects; triterpenoids including ursolic acid and oleanolic acid (~0.5-2% dry weight); saponins (~1-3% dry weight); and polysaccharides (~10-15% dry weight) with demonstrated immunomodulatory activity. Bioavailability note: High tannin content may reduce iron and zinc bioavailability through chelation; flavonoid absorption is enhanced by gut microbiota metabolism; polysaccharides are poorly absorbed but exert local gastrointestinal and systemic immune effects via gut-associated lymphoid tissue activation.
Reported Mechanism (Provisional)
Jin Ying Zi's high tannin content, particularly ellagitannins and gallotannins, exerts astringent effects by binding to proteins in mucous membranes and smooth muscle tissue. These compounds activate α-adrenergic receptors in the bladder neck and urethral sphincter, increasing muscle tone and reducing involuntary contractions. The herb's flavonoids and organic acids also inhibit cyclooxygenase enzymes, reducing prostaglandin-mediated inflammation in urogenital tissues.
Clinical Narrative (Provisional)
Limited human clinical data exists for Rosa laevigata, with most evidence from traditional use and animal studies. A small pilot study of 45 participants showed 60% improvement in urinary frequency symptoms after 8 weeks of standardized extract use. Animal studies demonstrate significant reduction in bladder inflammation markers and improved urinary retention, but human trials with larger sample sizes are needed. Current evidence is primarily observational and based on traditional Chinese medicine applications.
Also Known As
Research updates — and 25% off your first order
Join our list for source-aware wellness education, review-state updates, and product news — and unlock 25% off your first Hermetica order. Educational content is not medical advice. No spam, unsubscribe anytime.