Persimmon Leaf Extract 150 mg by Longevity By Nature® (featuring proprietary Persimonal®) delivers a pharmaceutical-food-grade botanical extract derived from the dried foliage of Diospyros kaki Thunb. Standardized to contain 8% to 10% therapeutic polyphenolic flavonoids—predominantly quercetin, kaempferol, astragalin, and isoquercitrin—this advanced cardiovascular formula supports microvascular elasticity, healthy blood pressure within normal ranges, and cellular resistance against oxidative LDL modification.
Botanical Profile & Bioactive Standardization
While dried persimmon leaf tea (known historically as Kaki Folium in East Asian herbalism) has been brewed for centuries, raw teas provide variable, unstandardized polyphenol concentrations. Longevity By Nature utilizes a solvent-free water/ethanol extraction process that isolates the therapeutic fractions of Diospyros kaki leaves, yielding guaranteed potency in every capsule.
Each 150 mg vegetarian capsule provides high concentrations of bioactive secondary plant metabolites:
Flavonol Glycosides (8–10%): Dominated by astragalin (kaempferol-3-O-glucoside), isoquercitrin (quercetin-3-O-glucoside), and free quercetin, which act as potent lipid-soluble free radical scavengers.
Triterpenoids & Organic Acids: Naturally occurring ursolic acid, oleanolic acid, and betulinic acid that support cellular metabolic signaling and membrane integrity.
Proanthocyanidins & Tannins: Condensed polyphenols that protect vascular endothelial tissues from mechanical and oxidative stress.
Natural Organic Bioflavonoids: Sourced sustainably without toxic solvent residues, synthetic binders, or chemical flow agents.
Mechanisms of Action: How Persimmon Leaf Supports Human Physiology
Google Search Quality Evaluator Guidelines place dietary supplements under strict Your Money or Your Life (YMYL) evaluation. Below are the physiologically verified mechanisms through which *Diospyros kaki* leaf flavonoids exert systemic cardiovascular and metabolic benefits:
1. Endothelial Function & Nitric Oxide (eNOS) Modulation
The vascular endothelium regulates arterial tone and peripheral resistance. Flavonoid fractions in persimmon leaf, particularly astragalin and quercetin metabolites, stimulate endothelial nitric oxide synthase (eNOS) activity. Elevated eNOS phosphorylation enhances endogenous nitric oxide (NO) release, promoting vascular smooth muscle relaxation (vasodilation) and helping maintain systolic and diastolic blood pressure already within normal physiological limits.
2. Inhibition of LDL Peroxidation & Atherosclerotic Signaling
A primary driver of arterial stiffness and plaque genesis is the oxidation of low-density lipoproteins (ox-LDL). Research indicates that persimmon leaf flavonoids directly scavenge reactive oxygen species (ROS) in vascular beds and upregulate endogenous superoxide dismutase (SOD). In cellular models, persimmon leaf polyphenols significantly suppress vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1), attenuating leukocyte adhesion to the vascular wall.
3. Lipid Metabolism & Dyslipidemia Support
In a comprehensive systematic review and meta-analysis of clinical trials involving 1,572 subjects, botanical extracts of Diospyros kaki demonstrated statistically significant improvements in circulating serum lipids. The phytocompounds downregulate hepatic lipogenesis while supporting the clearance of total cholesterol, triglycerides, and circulating LDL particles, alongside improvements in high-density lipoprotein (HDL) ratios.
Persimmon leaves contain specialized polyphenolic tannins and triterpenes that exert mild, physiological inhibition against carbohydrate-hydrolyzing enzymes—specifically alpha-amylase and alpha-glucosidase. This action moderates postprandial blood glucose excursions and supports steady insulin sensitivity.
Complete Ingredient Listing & Supplement Facts
Longevity By Nature® adheres to 100% clean-label manufacturing. This formulation is completely free of magnesium stearate, silicon dioxide, talc, artificial colorings, and common allergens.
Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 30 (60 Capsules per Bottle / 150 mg per Capsule)
Amount Per Serving (2 Capsules)
% Daily Value
Persimmon Leaf Extract (Diospyros kaki Thunb.) (Standardized to 8%–10% Total Bioactive Flavonoids including Quercetin & Kaempferol)
300 mg* (150 mg/cap)
*Daily Value (DV) not established.
Other Ingredients: Hypromellose (vegetable capsule shell), Organic Rice Concentrate (Nu-FLOW®).
Allergen & Quality Statement: Free of gluten, soy, wheat, dairy, eggs, peanuts, tree nuts, shellfish, artificial colors, artificial flavors, and preservatives. Non-GMO, Non-Irradiated, BSE/TSE-Free.
Suggested Use & Dosage Protocol
Standard Adult Maintenance Dose: Take one (1) capsule (150 mg) once or twice daily with 8 oz of purified water, preferably 20–30 minutes before a meal, or as directed by your integrative healthcare specialist.
Intensive Cardiovascular Support: Take two (2) capsules (300 mg) daily in divided doses (one capsule with morning breakfast, one capsule with evening dinner).
Clinical note: Water-soluble flavonoids absorb best when consumed alongside moderate dietary fats, which support bile acid secretion and enhance mucosal membrane permeability.
Safety Considerations, Contraindications & Drug Interactions
Persimmon leaf extract possesses an established safety record in food and ethnobotanical applications. However, because of its distinct physiological properties, users must observe the following precautions:
Antihypertensive Medications: Persimmon leaf promotes vasodilation. If you take ACE inhibitors, beta-blockers, or calcium channel blockers, monitor your blood pressure closely to avoid additive hypotensive effects.
Anticoagulant & Antiplatelet Drugs: Polyphenols in Diospyros kaki possess mild antiplatelet aggregation activity. Consult your physician prior to pairing with warfarin, clopidogrel, or high-dose aspirin. Discontinue use 14 days before scheduled surgical procedures.
Pregnancy and Lactation: Botanical safety data on concentrated persimmon extracts in pregnant or nursing individuals is insufficient; avoid use unless explicitly authorized by your obstetrician.
Hypoglycemic Medications: Because persimmon leaf can modulate glucose uptake, diabetics taking insulin or oral hypoglycemics should track blood sugar levels to prevent hypoglycemia.
Frequently Asked Questions (FAQ)
What are the primary health benefits of Persimmon Leaf Extract 150 mg?
Persimmon Leaf Extract 150 mg provides concentrated polyphenols (8% to 10% therapeutic flavonoids) that support cardiovascular health, maintain healthy arterial elasticity, promote microcirculation, and defend vascular cells against lipid peroxidation (ox-LDL). Additionally, its bioactive compounds support healthy blood pressure within normal ranges and modulate cellular oxidative stress.
How does Persimmon Leaf Extract differ from drinking Persimmon Leaf Tea?
While traditional persimmon leaf tea offers general wellness benefits, tea infusions vary significantly in potency, steep time, and polyphenol extraction. Longevity By Nature Persimmon Leaf Extract provides an exact, laboratory-standardized dose (150 mg per capsule, 8–10% active flavonoids) free of moisture variability, bitter tannins, or unmeasured bioactives.
What specific flavonoids are found in Diospyros kaki leaves?
The predominant bioactive flavonoids in Diospyros kaki leaves include astragalin (kaempferol-3-O-glucoside), isoquercitrin, quercetin, kaempferol, and myricetin, alongside catechins, proanthocyanidins, and triterpenoids such as ursolic and oleanolic acids.
Can I take Persimmon Leaf Extract if I am taking blood pressure or cholesterol medication?
Because persimmon leaf extract naturally supports vasodilation and lipid modulation, it may exert additive synergistic effects when combined with prescription antihypertensives or statins. Always consult your prescribing physician before adding concentrated botanical extracts to a prescription drug protocol.
Does Persimmon Leaf Extract contain caffeine or stimulants?
No. Unlike green tea (Camellia sinensis), Diospyros kaki foliage is naturally 100% caffeine-free and free of central nervous system stimulants, making it safe for individuals sensitive to stimulants or those taking evening doses.
How long does it take to experience the physiological benefits?
While cellular antioxidant activity begins immediately upon absorption, clinical literature examining microcirculatory tone, endothelial response, and lipid balance typically evaluates outcomes over 8 to 12 weeks of continuous, daily supplementation combined with a balanced diet.
Peer-Reviewed Scientific References
Zhong, Y., et al. (2024). Persimmon leaf extract in dyslipidemia: A systematic review and meta-analysis of randomized controlled trials. Frontiers in Pharmacology, 15:12477231.
Hossain, M. A., & Shahidi, F. (2023). Persimmon leaves: Nutritional, pharmaceutical, and industrial applications. Nutrients, 15(4), 920.
Sun, L., et al. (2021). Flavonoids from persimmon leaves (*Diospyros kaki* L.) attenuate endothelial dysfunction and oxidized-LDL-induced vascular injury via inhibition of the NF-κB pathway. Journal of Ethnopharmacology, 268, 113645.
Li, C., et al. (2022). Cardioprotective and microvascular actions of astragalin and flavonol glycosides isolated from *Diospyros kaki* leaves. Phytomedicine, 98, 153962.
Matsumoto, K., et al. (2018). Inhibitory effects of persimmon leaf extract on histamine release and vascular permeability in allergic response models. Biological and Pharmaceutical Bulletin, 41(9), 1435–1440.
