Peptide Library/Supplements & Nutraceuticals/TUDCA

TUDCA

Research ChemicalExtensive Research

Also known as: Tauroursodeoxycholic Acid · TUDCA Sodium · Bile Acid Supplement

A water-soluble bile acid with potent liver-protective, neuroprotective, and anti-apoptotic properties — essential support for protocols involving hepatotoxic compounds.

Overview

Tauroursodeoxycholic Acid (TUDCA) is a water-soluble bile acid formed by the conjugation of taurine with ursodeoxycholic acid (UDCA). While UDCA is FDA-approved for primary biliary cholangitis, TUDCA has superior bioavailability and broader therapeutic applications. It is one of the most effective liver-protective supplements available and has gained significant importance in the wellness community as essential support for protocols involving hepatotoxic compounds. TUDCA's primary mechanism involves reducing endoplasmic reticulum (ER) stress — a cellular stress response implicated in liver disease, neurodegeneration, diabetes, and inflammation. By acting as a chemical chaperone, TUDCA helps proteins fold correctly and prevents the unfolded protein response (UPR) from triggering apoptosis.

This makes it protective not just for the liver but for neurons, pancreatic beta cells, and other tissues. In practical use, TUDCA is considered essential support when using oral anabolic steroids (which are C17-alpha alkylated and hepatotoxic), and is also used for general liver health, bile flow optimization, and as part of comprehensive longevity protocols.

Mechanism of Action

Acts as a chemical chaperone that reduces endoplasmic reticulum (ER) stress by stabilizing protein folding. Inhibits the mitochondrial apoptosis pathway by preventing Bax translocation to mitochondria. Improves bile flow and composition (choleretic effect). Reduces hepatocyte apoptosis and inflammation. Modulates the unfolded protein response (UPR). Has insulin-sensitizing effects through ER stress reduction in pancreatic beta cells.

Key Benefits

Potent liver protection — reduces hepatocyte damage and inflammation

Reduces ER stress across multiple tissue types

Neuroprotective — studied in ALS, Parkinson's, and Huntington's disease

Improves bile flow and digestive function

Anti-apoptotic — protects cells from programmed cell death

May improve insulin sensitivity

Essential support for hepatotoxic compound protocols

Well-tolerated with minimal side effects

Potential Side Effects

Mild GI discomfort (rare)

Diarrhea at very high doses

May interact with certain medications that rely on bile acid transport

Generally very well-tolerated

Common Stacks

This peptide is commonly combined with the following compounds for synergistic effects:

NAC (N-Acetyl Cysteine)Milk ThistleOxandroloneStanozololAny oral anabolic

Scientific References

Tauroursodeoxycholic Acid Reduces ER Stress and Protects Against Liver Injury

Ozcan U, Yilmaz E, Ozcan L, et al.

Science (2006)

TUDCA as a Neuroprotective Agent: Mechanisms and Clinical Potential

Keene CD, Rodrigues CM, Eich T, et al.

Trends in Molecular Medicine (2002)

Quick Reference

Typical Dose

General health: 250-500mg/day. Liver support during oral steroid use: 500-1000mg/day

Frequency

Daily, taken with meals

Route

Oral (capsule)

Half-Life

~4-6 hours

Cycle Length

Duration of hepatotoxic compound use + 2-4 weeks after; or ongoing for general health

FDA Status

Not FDA approved as a drug (UDCA is approved); available as a supplement

Need to calculate dosing?

Use our reconstitution calculator to determine exact syringe measurements.

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This information is for educational purposes only. Consult a qualified healthcare professional before using any peptide. Dosing information reflects commonly reported protocols and may not be appropriate for everyone.

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