TETRAHYDROCURCUMIN
A major bioactive metabolite of curcumin with superior bioavailability and enhanced antioxidant activity, exhibiting potent anti-inflammatory, hepatoprotective, and skin-lightening properties.
Tetrahydrocurcumin (THC) is a major metabolite of curcumin with enhanced bioavailability, water solubility, and chemical stability compared to its parent compound. It exerts potent antioxidant, anti-inflammatory, and neuroprotective effects by reducing oxidative stress, modulating inflammatory pathways, and protecting mitochondrial function. THC has demonstrated therapeutic potential for cardiovascular health, metabolic dysfunction, neurodegenerative diseases, and age-related conditions.
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Research
Reported Effects
Enhanced Bioavailability:: Demonstrated 2-3 fold better absorption compared to standard curcumin in multiple studies. Dose-Dependent Effects:: Both upregulation and downregulation of certain enzymes depends on concentration used. Superior Stability:: Greater water solubility and chemical stability compared to curcumin while maintaining therapeutic benefits. Metabolite Advantage:: Acts as an active metabolite of curcumin with similar or enhanced biological activities
- Demonstrated 2-3 fold better absorption compared to standard curcumin in multiple studies
- Both upregulation and downregulation of certain enzymes depends on concentration used
- Greater water solubility and chemical stability compared to curcumin while maintaining therapeutic benefits
- Acts as an active metabolite of curcumin with similar or enhanced biological activities
Safety Profile
Safety Profile: Tetrahydrocurcumin
Common Side Effects
- Generally well tolerated at typical doses (250–500 mg/day); better bioavailability than curcumin
- Mild gastrointestinal symptoms including nausea, bloating, and diarrhea
- Mild headache reported in some users
- Yellow discoloration of stools (harmless, related to curcuminoid metabolism)
Serious Adverse Effects
- Limited human clinical trial data compared to parent compound curcumin; most safety data extrapolated from curcumin studies
- Potential antiplatelet activity may increase bleeding risk at high doses
- Theoretical risk of iron chelation and reduced iron absorption with chronic high-dose use
- No significant hepatotoxicity or nephrotoxicity reported at standard doses in available studies
- Rare allergic reactions in individuals sensitive to turmeric or Curcuma species
Contraindications
- Known allergy to turmeric, curcumin, or related Zingiberaceae family plants
- Active bleeding disorders or upcoming surgery (discontinue 2 weeks prior)
- Bile duct obstruction or gallstones (curcuminoids stimulate bile flow)
- Iron deficiency anemia (may impair iron absorption)
- Pregnancy and lactation (insufficient safety data at supplemental doses; culinary turmeric use is generally safe)
Drug Interactions
- Anticoagulants/Antiplatelets (warfarin, aspirin, clopidogrel): May potentiate anticoagulant effects; monitor INR and bleeding signs
- Antidiabetic agents: May enhance hypoglycemic effects; monitor blood glucose
- CYP3A4 and CYP2C9 substrates: Curcuminoids may inhibit these enzymes; caution with drugs having narrow therapeutic indices
- Iron supplements: May chelate iron and reduce absorption; separate dosing by at least 2 hours
- Chemotherapy agents: May interact with certain chemotherapeutics; consult oncologist before concurrent use
Population-Specific Considerations
- Elderly: Generally well tolerated; monitor for GI side effects and potential drug interactions
- Pediatric: No established safety data at supplemental doses; not recommended for children
- Diabetic patients: Monitor blood glucose closely due to potential hypoglycemic effects
- Gallbladder disease: Avoid use due to choleretic (bile-stimulating) effects
- Anemic patients: Monitor iron status with long-term use
Pharmacokinetic Profile
Molecular Structure
- Formula
- C21H24O6
- Weight
- 372.4 Da
- PubChem CID
- 124072
- Exact Mass
- 372.1573 Da
- LogP
- 2.8
- TPSA
- 93.1 Ų
- H-Bond Donors
- 2
- H-Bond Acceptors
- 6
- Rotatable Bonds
- 10
- Complexity
- 437
Identifiers (SMILES, InChI)
InChI=1S/C21H24O6/c1-26-20-11-14(5-9-18(20)24)3-7-16(22)13-17(23)8-4-15-6-10-19(25)21(12-15)27-2/h5-6,9-12,24-25H,3-4,7-8,13H2,1-2H3
LBTVHXHERHESKG-UHFFFAOYSA-NSafety Profile
Common Side Effects
- Trace Mineral Depletion:: Potential for zinc, copper, and selenium depletion with long-term curcuminoid use based on NAC-related reports
- Digestive Interactions:: Can affect pepsin function and enzyme activity in concentration-dependent manner
- Limited Human Data:: Most safety profiles derived from animal studies with minimal long-term human clinical data
- Generally Well-Tolerated:: No major adverse effects reported in animal studies at therapeutic doses
References (9)
- [1]Positive Tetrahydrocurcumin-Associated Brain-Related Metabolomic Implications
→ THC demonstrates strong antioxidant properties and effectively reduces amyloid β aggregates in various brain dysfunction models including traumatic brain injury, ischemia-reperfusion injury, Alzheimer's disease, and Parkinson's disease.
- [2]Nutraceutical activation of Sirt1: a review
→ Tetrahydrocurcumin is identified as a nutraceutical that enhances Sirt1 synthesis and protein expression, contributing to anti-aging effects and improved healthspan similar to calorie restriction.
- [3]Tetrahydrocurcumin alleviates hypertension, aortic stiffening and oxidative stress in rats with nitric oxide deficiency
→ THC at 50-100 mg/kg significantly reduced blood pressure, peripheral vascular resistance, and aortic stiffness while improving oxidative stress markers in hypertensive rats.
- [4]Tetrahydrocurcumin-Related Vascular Protection: An Overview of the Findings from Animal Disease Models
→ THC demonstrates preventive effects on vascular dysfunction and hypertension development through improvements in hemodynamic status, aortic elasticity, and reduction of oxidative stress in various animal models.
- [5]The role of tetrahydrocurcumin in disease prevention and treatment
→ Comprehensive review highlighting THC's important roles in prevention and treatment of various diseases, with enhanced bioavailability compared to curcumin from herbal medicine and dietary sources.
- [6]Tetrahydrocurcumin Ameliorates Skin Inflammation by Modulating Autophagy in High-Fat Diet-Induced Obese Mice
→ THC demonstrated anti-inflammatory and antioxidant effects by modulating autophagy processes in skin tissue of obese mice, addressing obesity-induced chronic low-grade inflammation.
- [7]Tetrahydrocurcumin Enhances Islet Cell Function and Attenuates Apoptosis in Mouse Islets
→ THC treatment enhanced islet cell function and reduced apoptosis before transplantation, demonstrating antioxidant and anti-inflammatory activities that protect against ischemic damage.
- [8]Tetrahydrocurcumin: effect on chloroquine-mediated oxidative damage in rat kidney
→ Oral administration of THC at 80 mg/kg significantly prevented chloroquine-induced nephrotoxicity by decreasing lipid peroxidation and increasing antioxidant levels in kidney tissue.
- [9]Efficacy of TurmiZn, a Metallic Complex of Curcuminoids-Tetrahydrocurcumin and Zinc on Bioavailability, Antioxidant, and Cytokine Modulation Capability
→ A curcuminoid-THC-zinc complex showed 2-3 fold increase in bioavailability compared to curcumin and THC alone, with enhanced antioxidant capability and inflammatory cytokine inhibition.
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