Top 11 Best TUDCA Supplements (2026)
01 · Best Overall✓ Label verified · Supplement Facts read Sep 7, 2026Best Overall — HPLC-Verified: Double Wood TUDCA Bile Salts, 60 Capsules (500mg per 2-cap serving)
The one product that actually proves what is in the capsule: active content is HPLC-verified against a USP standard for both identity and potency, and the 2-capsule serving lands 500mg at the top of the functional range. It is not the cheapest, but for a bile acid you are ingesting for liver support, verified purity is exactly the thing worth paying a little more for.
~$29.95~$1.00 per 500mg serving (~$0.50/cap)
Why it wins: all five scores, pros & cons, full label
- HPLC identity/potency testing against a USP standard — the strongest purity proof in this field
- Reaches 500mg/day, the top of the functional 250-500mg range
- Screened for heavy metals and microbial contamination; Non-GMO, gluten-free, cGMP
- Costs more per milligram than bulk-brand single caps
- Genuinely bitter taste if a capsule is opened or dissolves early — a real bile-acid marker but unpleasant
- Standardization
- HPLC-verified vs USP reference standard
- Cost per dose
- ~$1.00 per 500mg serving
- Dose
- 250mg/cap; 500mg per 2-cap serving
- Form
- Capsule (synthesized TUDCA, not bear-bile derived)
- Count
- 60 capsules (30 servings)
- Testing
- Third-party: HPLC potency/identity, heavy metals, microbial
Our take — Double Wood wins because it removes the one thing you cannot verify yourself: whether the powder is real, potent TUDCA. HPLC-against-USP testing plus a clean 500mg serving makes it our default recommendation for anyone taking TUDCA for liver or bile-flow support. Pay the small premium and buy proof, not marketing.
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11Who Wins Which Aspect
Sorted by overall SAC Product Score™ — the official ranking.
| # | Pick | Score | Third-Party Testing & Purity30% | Form & Bioavailability20% | Dose vs Functional Range20% | Tolerability & Safety15% | Value15% | Cost Per Dose | Buy |
|---|---|---|---|---|---|---|---|---|---|
| 01 | | 8.3 | 8.82 | 8.01 | 8.51 | 8.01 | 8.02 | ~$1.00 / 500mg serving | Check price |
| HPLC identity/potency testing against a USP standard — the strongest purity proof in this fieldCosts more per milligram than bulk-brand single caps | |||||||||
| 02 | | 7.9 | 9.21 | 8.01 | 7.5 | 8.01 | 5.5 | ~$0.92 / 250mg | Check price |
| Dual in-house plus external cGMP batch testing — top-tier verificationHighest shelf price in the roundup and priciest per milligram at a full 500mg dose | |||||||||
| 03 | | 7.6 | 7.4 | 7.52 | 7.3 | 8.01 | 8.31 | ~$0.42 / 250mg | Check price |
| Third-party tested in an ISO-accredited lab from a well-established value brandPublishes less granular COA detail than Double Wood's HPLC-vs-USP documentation | |||||||||
| 04 | | 7.6 | 7.0 | 7.52 | 8.32 | 7.52 | 8.02 | ~$0.87 / 500 mg serving | Check price |
| 500 mg of TUDCA in one capsuleThird Party Tested names no lab and has no NSF listing | |||||||||
| 05 | | 7.5 | 7.0 | 7.03 | 8.51 | 7.52 | 8.02 | ~$0.82 / 500mg capsule | Check price |
| Full 500mg, the top of the 250-500mg range, in one capsuleTesting claim names no lab; no certifier lists the brand and no COA is published | |||||||||
| 06 | | 7.4 | 7.83 | 7.52 | 7.5 | 7.52 | 6.0 | ~$0.67 / 300mg serving | Check price |
| QR-linked batch third-party lab results — easy to verify exactly what you boughtPremium sports-supplement pricing relative to equally-tested competitors | |||||||||
| 07 | | 7.0 | 7.0 | 7.03 | 7.0 | 7.52 | 6.53 | ~$0.47 / 250mg cap | Check price |
| Per-batch purity and identity testing from a large, established supplierTesting documentation is less prominent and detailed than the HPLC-vs-USP leaders | |||||||||
| 08 | | 6.3 | 5.8 | 5.5 | 8.03 | 6.0 | 6.53 | ~$0.43 / full serving | Check price |
| Full 500mg TUDCA per serving at the top of the functional rangeOx bile is animal-derived — not vegan and raises the GI side-effect profile | |||||||||
| 09 | | 6.1 | 6.0 | 6.5 | 6.5 | 7.03 | 4.5 | ~$1.17 / 250mg cap | Check price |
| Clean single-ingredient veg-cap formula, suitable for vegetariansPriciest per capsule in the entire roundup and only a 30-count bottle | |||||||||
| 10 | | 5.9 | 4.8 | 6.0 | 6.5 | 6.5 | 6.53 | ~$0.28 / 250mg cap | Check price |
| Lowest cost per capsule in the roundupMinimal third-party COA transparency — the biggest weakness for a bile acid | |||||||||
| 11 | | 5.5 | 3.2 | 5.8 | 8.51 | 6.0 | 5.5 | — | Check price |
| TUDCA is dosed at 900mg per serving, above the 250-500mg most single-ingredient products sell at, and every botanical carries its own milligram figureNo third-party testing claim appears anywhere on the listing | |||||||||
The Other 10, Ranked
- 02
Highest Testing Rigor: BodyBio TUDCA, 60 Capsules
7.9SAC Score™BodyBio double-tests each batch — in-house plus an external cGMP lab — which is about as rigorous as consumer TUDCA gets. The catch is the price: at roughly $0.92 a capsule it is the most expensive shelf item here, and the 250mg single-cap serving means hitting 500mg doubles that cost. Rigor you can trust, at a premium.
StrongestThird-Party Testing & Purity9.21WeakestValue5.5- Standardization
- Batch-tested for potency/identity
- Cost per dose
- ~$0.92 per 250mg; ~$1.83 for a 500mg day
- Dose
- 250mg per capsule
All five scores, pros & cons, full label
What We Like- Dual in-house plus external cGMP batch testing — top-tier verification
- Clean single-ingredient formula positioned for bile flow and fat metabolism
- Trusted practitioner-channel brand with consistent quality control
What You Live With- Highest shelf price in the roundup and priciest per milligram at a full 500mg dose
- Only 250mg per capsule, so a top-of-range serving burns through the bottle in a month
- Form
- Capsule, single-ingredient TUDCA
- Count
- 60 capsules
- Testing
- In-house + external certified cGMP lab (dual)
Our take — BodyBio matches Double Wood on testing philosophy but loses the top spot purely on value — you pay roughly double per milligram for comparable purity proof. If budget is no object and you want belt-and-suspenders testing, it is an excellent choice. For most buyers the price gap is hard to justify.
- 03
Best Value Mainstream: Nutricost TUDCA 250mg, 60 Capsules (Tauroursodeoxycholic Acid)
7.6SAC Score™The sensible mainstream pick: a well-known brand, third-party tested in an ISO-accredited lab, made in a GMP/FDA-registered facility, at a fair ~$0.42 a capsule. It is 250mg per cap, so you will take two to reach the top of the range, but for a first bottle of clean, verified single-ingredient TUDCA this is the low-risk buy.
StrongestValue8.31WeakestDose vs Functional Range7.3- Standardization
- Single-ingredient, label-stated 250mg
- Cost per dose
- ~$0.42 per 250mg; ~$0.83 for 500mg
- Dose
- 250mg per capsule
All five scores, pros & cons, full label
What We Like- Third-party tested in an ISO-accredited lab from a well-established value brand
- Fair price per milligram — strong balance of trust and cost
- Non-GMO, gluten-free, made in a GMP/FDA-registered facility
What You Live With- Publishes less granular COA detail than Double Wood's HPLC-vs-USP documentation
- 250mg per cap means two capsules to hit the top of the functional range
- Form
- Capsule, synthesized (not bear-bile) TUDCA
- Count
- 60 capsules
- Testing
- Third-party tested (ISO-accredited lab)
Our take — Nutricost is the safe, sane default for a first TUDCA bottle — trusted brand, real third-party testing, honest single-ingredient label, and a price that does not sting. It sits just below the podium only because its COA transparency is a notch under our top two. For value-minded buyers, this is the one.
- 04
500 mg in One Capsule: Nutricost TUDCA 500mg, 30 Capsules (Tauroursodeoxycholic Acid)
7.6SAC Score™500 mg of TUDCA in a single capsule, on a short single-ingredient label, for about 87 cents a serving. The top of the 250-500 mg range without taking two capsules. The testing is brand-stated: the bottle says Third Party Tested, no lab is named, and we found no NSF listing.
StrongestDose vs Functional Range8.32WeakestThird-Party Testing & Purity7.0- Cost per dose
- ~$0.87 per 500 mg serving
- Dose
- 500 mg TUDCA per capsule; serving = 1 capsule
- Other ingredients
- Gelatin capsule, rice flour, magnesium stearate (vegetable source), silica, calcium silicate
All five scores, pros & cons, full label
What We Like- 500 mg of TUDCA in one capsule
- About $0.87 per 500 mg serving
- Short single-ingredient label, no blend
What You Live With- Third Party Tested names no lab and has no NSF listing
- One fixed strength, no lower step than 500 mg
- Gelatin capsule, not vegetarian
- Form
- TUDCA (tauroursodeoxycholic acid), single ingredient, gelatin capsule
- Count
- 30 capsules = 30 servings
- Testing
- Third Party Tested printed, no lab named · no NSF Certified for Sport, NSF/ANSI 173 or NSF GMP listing found
Our take — A convenient way to take 500 mg of TUDCA: one capsule, a short label and a fair price. What holds it back is the testing, which is printed on the bottle but names no lab and has no NSF listing we could find. Double Wood (8.3) documents its testing in more depth for a little more per serving, and the Nutricost 250 mg bottle (7.6) lets you start at half the dose. Pick this one if one capsule at 500 mg is what you want and you accept brand-stated testing.
- 05
500 mg in One Capsule: PrimaForce TUDCA 500 mg, 30 Capsules (Tauroursodeoxycholic Acid)
7.5SAC Score™The full 500 mg in a single capsule, 30 servings, at about $0.82 a capsule. The panel is a clean single ingredient. The testing claim names no lab and no certifier lists the brand, which is why it sits just below Nutricost.
StrongestDose vs Functional Range8.51WeakestThird-Party Testing & Purity7.0- Standardization
- Single ingredient; the panel declares no TUDCA source or purity percentage
- Cost per dose
- ~$0.82 per 500mg capsule
- Dose
- 500mg per capsule, 1 capsule per serving
All five scores, pros & cons, full label
What We Like- Full 500mg, the top of the 250-500mg range, in one capsule
- Single active ingredient, no blend and no added stack
- About $0.82 per 500mg serving, with no second capsule to buy
What You Live With- Testing claim names no lab; no certifier lists the brand and no COA is published
- No lower step inside the bottle: one capsule is the full 500mg
- The panel declares no TUDCA source or purity figure
- Form
- Capsule (gelatin), single-ingredient TUDCA
- Count
- 30 capsules (30 servings)
- Testing
- Front prints Always Third Party Tested, no lab named; not on NSF, Informed Sport or Informed Choice lists (Oct 18, 2026)
Our take — PrimaForce puts the whole 500 mg into one capsule, which is the most convenient way to reach the top of the range on this list, at about $0.82 per serving. What it cannot match is the testing evidence of the leaders: the front says Always Third Party Tested without naming a lab, and the certifier lists we checked do not carry the brand. Buy it if you want a one-capsule 500 mg dose and accept a brand testing claim; choose Double Wood or BodyBio if verified testing matters most.
- 06
Most Transparent Batch Data: Huge Supplements TUDCA 300mg, 60 Servings
7.4SAC Score™Huge earns points for radical transparency: a QR code on the bottle links straight to batch-specific third-party lab results, and the serving is a slightly higher 300mg. The knock is sports-supplement pricing — you pay a premium for the packaging and brand as much as the powder. Great if scannable proof matters to you.
StrongestThird-Party Testing & Purity7.83WeakestValue6.0- Standardization
- Batch-specific, label-stated 300mg
- Cost per dose
- ~$0.67 per 300mg serving
- Dose
- 300mg per serving
All five scores, pros & cons, full label
What We Like- QR-linked batch third-party lab results — easy to verify exactly what you bought
- Slightly higher 300mg per serving vs the standard 250mg
- Single-ingredient pure bile salts, no filler stack
What You Live With- Premium sports-supplement pricing relative to equally-tested competitors
- Higher dose still buys no proven OTC outcome benefit — purity is the axis, not efficacy claims
- Form
- Capsule, pure bile salts (single-ingredient)
- Count
- 60 servings
- Testing
- Third-party batch results via scannable QR code
Our take — Huge Supplements does the transparency thing right — scannable, batch-specific COAs are the gold standard, and 300mg is an honest, slightly generous serving. It ranks mid-pack only because the price outruns the value of the extra 50mg. Buy it if you want to physically verify your batch and do not mind paying for the brand.
- 07
No-Frills Workhorse: BulkSupplements.com TUDCA 250mg, 60 Capsules
7.0SAC Score™A straightforward, no-nonsense 250mg capsule from a high-volume brand that tests each batch for purity and identity and also sells a bulk powder if you want to dial in your own dose. Nothing flashy, nothing hidden — a dependable middle-of-the-road choice that does the basics correctly.
StrongestTolerability & Safety7.52WeakestValue6.5- Standardization
- Single-ingredient, batch-tested 250mg
- Cost per dose
- ~$0.47 per 250mg cap
- Dose
- 250mg per capsule
All five scores, pros & cons, full label
What We Like- Per-batch purity and identity testing from a large, established supplier
- Powder option available for buyers who want to fine-tune dosing
- Clean single-ingredient formula with no added stack ingredients
What You Live With- Testing documentation is less prominent and detailed than the HPLC-vs-USP leaders
- Middling price per milligram — neither the cheapest nor the best-verified
- Form
- Capsule (bulk powder also available for dose control)
- Count
- 60 capsules
- Testing
- Manufacturer/third-party tested for purity and identity per batch
Our take — BulkSupplements is the reliable workhorse: correct basics, real batch testing, and a powder route for the dose-tinkerers. It lands mid-pack because it neither out-tests the premium brands nor out-prices the value ones. A perfectly solid, unexciting buy.
- 08
Best for Bile Flow (Stacked): NatureBell TUDCA 500mg + OX Bile 125mg, 120 Capsules
6.3SAC Score™If your goal is specifically bile flow and fat digestion — say you are missing a gallbladder — the added ox bile makes some rational sense, and 500mg of TUDCA plus a 120-count bottle is genuinely good value. But the ox bile is an animal-derived add-in that raises the side-effect profile and pulls it off the pure single-ingredient axis this ranking rewards.
StrongestDose vs Functional Range8.03WeakestForm & Bioavailability5.5- Standardization
- Label-stated 500mg TUDCA per serving
- Cost per dose
- ~$0.43 per full serving
- Dose
- 500mg TUDCA + 125mg ox bile per serving
All five scores, pros & cons, full label
What We Like- Full 500mg TUDCA per serving at the top of the functional range
- Ox bile adds targeted bile-flow/fat-digestion support (useful post-gallbladder)
- Excellent value at 120 capsules for the price
What You Live With- Ox bile is animal-derived — not vegan and raises the GI side-effect profile
- Blended formula moves it off the pure single-ingredient purity axis, hurting testing/form scores
- Form
- Capsule, TUDCA + ox bile blend (animal-derived component)
- Count
- 120 capsules
- Testing
- Third-party tested; Non-GMO, gluten-free
Our take — NatureBell is the value-and-dose story with a purpose: for bile-flow and fat-digestion goals, the ox-bile pairing is defensible and the 500mg dose plus 120-count size is a lot of product for the money. It ranks here because the animal-derived add-in dilutes purity and tolerability — the exact axes we weight most. Right for a specific use case, not the general TUDCA buyer.
- 09
Practitioner-Brand Premium: Dr. Berg TUDCA Supplement, 30 Capsules
6.1SAC Score™A clean single-ingredient veg-cap TUDCA from a heavily-marketed practitioner brand, positioned for liver, bile and gallbladder support. The problem is the math: at ~$1.17 per capsule and only 30 in the bottle, it is by far the worst value here, with no testing edge to justify the brand premium.
StrongestTolerability & Safety7.03WeakestValue4.5- Standardization
- Label-stated 250mg, single-ingredient
- Cost per dose
- ~$1.17 per 250mg cap — priciest per dose
- Dose
- 250mg per capsule
All five scores, pros & cons, full label
What We Like- Clean single-ingredient veg-cap formula, suitable for vegetarians
- Well-known practitioner brand with clear liver/bile/gallbladder positioning
- Non-GMO and gluten-free
What You Live With- Priciest per capsule in the entire roundup and only a 30-count bottle
- No third-party COA advantage to justify the brand premium over cheaper tested options
- Form
- Vegetable capsule, single-ingredient TUDCA
- Count
- 30 capsules
- Testing
- GMP facility, Non-GMO, gluten-free (no standout third-party COA)
Our take — Dr. Berg sells a fine, clean capsule — but you are paying a heavy brand tax for it. At more than double the per-milligram cost of Nutricost with no testing edge, it fails our quality-over-price test from the value side. Choose it only if brand loyalty genuinely matters to you.
- 10
Cheapest Per Cap (Caveat): Best Naturals TUDCA 250mg, 60 Veg Capsules
5.9SAC Score™At roughly $0.28 a capsule this is the cheapest TUDCA here, in a vegetarian shell, at a standard 250mg. But for a bile acid, cheap-with-no-paperwork is exactly the wrong trade: the thin third-party COA transparency drags it down hard on the axis that matters most. Low price, low proof.
StrongestDose vs Functional Range6.5WeakestThird-Party Testing & Purity4.8- Standardization
- Label-stated 250mg
- Cost per dose
- ~$0.28 per 250mg cap — lowest here
- Dose
- 250mg per capsule
All five scores, pros & cons, full label
What We Like- Lowest cost per capsule in the roundup
- Vegetarian capsule shell and Non-GMO
- Honest single-ingredient 250mg label with no proprietary-blend games
What You Live With- Minimal third-party COA transparency — the biggest weakness for a bile acid
- No HPLC/USP verification to confirm identity and potency
- Form
- Vegetable capsule, single-ingredient TUDCA
- Count
- 60 veg capsules (2-month supply at 1/day)
- Testing
- GMP facility; minimal published third-party COA transparency
Our take — Best Naturals is a fine budget option in categories where purity is easy to verify — but TUDCA is not one of them. Without accessible third-party testing you are trusting the label on faith, which is why it ranks near the bottom despite the best price. If you must go cheap, at least know what you are trading away.
- 11
Skip: No Third-Party Testing: Canarata TUDCA with Milk Thistle Liver Supplements 1000mg - 120 Capsules
5.5SAC Score™The panel discloses a real 900mg TUDCA dose per two-capsule serving, with a six-herb blend of 100mg alongside it (milk thistle at 20mg, four other botanicals at 10-20mg each). What it lacks is any third-party testing claim, and none of the botanicals carries an extract ratio or marker percentage. On a ranking that weights published testing most heavily, that lands it last despite a strong, disclosed TUDCA dose.
StrongestDose vs Functional Range8.51WeakestThird-Party Testing & Purity3.2- Dose
- TUDCA 900mg + 100mg six-herb blend = 1000mg total per 2-capsule serving (label figures)
- Blend
- TUDCA 900mg; Herbal Blend 100mg (milk thistle 20mg, beetroot 20mg, chanca piedra 20mg, artichoke 20mg, chicory root 10mg, dandelion root 10mg)
- Testing
- No third-party testing claim on the listing
All five scores, pros & cons, full label
What We Like- TUDCA is dosed at 900mg per serving, above the 250-500mg most single-ingredient products sell at, and every botanical carries its own milligram figure
- Vegan formula, per the listing
- Two 60-count bottles: 60 servings, about two months at one serving a day
What You Live With- No third-party testing claim appears anywhere on the listing
- The six botanicals are dosed at 10-20mg each, with no extract ratio or marker percentage
- Each capsule carries 450mg of TUDCA, so a lower dose means a different product
- Form
- Capsule, 7-ingredient liver blend (listing states vegan)
- Count
- 120 capsules as 2 bottles of 60; 30 servings per bottle, 60 total, about 2 months
- Price
- Not published in our verified data
Our take — Skip it for the missing testing, not the TUDCA dose. The panel prints 900mg of TUDCA per serving, above the 250-500mg most single-ingredient products sell at, but no third-party testing claim backs it, and the six botanicals riding along are dosed at 10-20mg each with no standardization. If you want a strong disclosed TUDCA dose and can live without verification, it works; if you want the dose tested, buy single-ingredient TUDCA and add a standardized milk thistle yourself.
TUDCA In Two Short Lessons
Buy a third-party-tested product.
Testing and purity lead our score at 30%. This is a bile acid, and the label has to be trustworthy.
Check the dose per capsule.
Compare it with the functional range used in the small human trials before you compare prices.
Keep expectations modest.
The mechanism is drug-validated, but even the approved parent drug showed no hard-outcome benefit across 11 trials (Goulis 1999). Human TUDCA data is early and small.
Beuers U, Nat Clin Pract Gastroenterol Hepatol 2006 (PMID 16741551); Goulis J et al., Lancet 1999 (PMID 10509495); Kars M et al., Diabetes 2010 (PMID 20522594); Pan XL et al., 2013 (PMID 23592128).
TUDCA is a single, well-defined molecule, so there is no clever extract ratio or bioavailability trick to reward. That makes purity and proof the whole ballgame. Our SAC Efficacy Score weights third-party testing and purity most heavily, because an unverified bile-acid capsule is the one thing you cannot fix at home. Dose matters next — the functional range in human and preclinical work sits around 250-500mg/day, and we rewarded products that let you hit it cleanly without proprietary-blend guesswork. Tolerability and safety cover the real-world caveats (bile acids can cause GI upset; ox-bile add-ins are animal-derived). Value is capped at 15% and can only ever break a tie between comparable products — it is never a path to the top. Every product keeps its exact real ASIN, and no score, price, or spec here is invented.
Third-Party Testing & Purity · 30%
The single most important axis for a bile acid. We rewarded documented HPLC identity/potency testing against a USP standard, heavy-metal and microbial screens, and published or QR-linked batch COAs. Brands with only 'GMP facility' language and no accessible certificate of analysis were marked down hard.
Form & Bioavailability · 20%
TUDCA is the taurine-conjugated, more water-soluble form of UDCA, so raw form is already good. Here we scored single-ingredient clarity versus blends that dilute or obscure the TUDCA itself, plus capsule quality (veg vs standard) and freedom from unnecessary fillers.
Dose vs Functional Range · 20%
We benchmarked each serving against the ~250-500mg/day range used in human trials and preclinical work. Products landing 250-500mg of disclosed TUDCA scored best; proprietary blends that hide the true TUDCA milligram count scored worst regardless of a big headline number.
Tolerability & Safety · 15%
Bile acids can trigger GI upset, loose stools, or nausea, and are not advised in pregnancy or with bile-duct obstruction. We rewarded clean single-ingredient formulas and penalized additions (like ox bile) that raise the side-effect and suitability profile without proven outcome benefit.
Value · 15%
Cost per functional serving, capped so it can only break ties. A cheap product with no COA never outranks a verified one on price alone; a premium price is only justified when matched by testing rigor or an honest higher dose.
The bottom line
Buy Double Wood if you want proof, not promises
For the general buyer, Double Wood is the pick because it is the only product that HPLC-tests its powder against a USP standard and screens for heavy metals and microbes — then delivers a clean 500mg serving. When the whole category comes down to purity, buy the one that proves it.
Buy Nutricost if you want the sane value default
Not everyone needs lab-grade paperwork. Nutricost is a trusted brand, third-party tested in an ISO-accredited lab, single-ingredient, and fairly priced at ~$0.42/cap. It is the low-risk first bottle for most people and the best balance of trust and cost in the roundup.
Skip the proprietary blend, and treat every claim skeptically
The Canarata blend hides its true TUDCA dose behind a 1000mg proprietary-blend number — avoid it and buy single-ingredient TUDCA, adding milk thistle separately if you want the stack. And whatever you buy, remember the honest headline: TUDCA's mechanism is strong but its OTC outcome evidence is thin. Set expectations accordingly and talk to a doctor for any real liver condition.
Quick Answers
What is the best tudca pick overall?
Double Wood TUDCA Bile Salts, 60 Capsules (500mg per 2-cap serving) by Double Wood Supplements is our #1 pick (SAC score 8.3/10). Double Wood wins because it removes the one thing you cannot verify yourself: whether the powder is real, potent TUDCA. HPLC-against-USP testing plus a clean 500mg serving makes it our default recommendation for anyone taking TUDCA for liver or bile-flow support. Pay the small premium and buy proof, not marketing.
What is the best budget option?
Nutricost TUDCA 250mg, 60 Capsules (Tauroursodeoxycholic Acid) at ~$24.95. Nutricost is the safe, sane default for a first TUDCA bottle — trusted brand, real third-party testing, honest single-ingredient label, and a price that does not sting. It sits just below the podium only because its COA transparency is a notch under our top two. For value-minded buyers, this is the one.
How much do these picks cost?
Across our ranked picks, prices run from about $16.99 to $54.99 — exact price and cost per serving are listed on every pick card above.
How were these picks ranked?
TUDCA is a single, well-defined molecule, so there is no clever extract ratio or bioavailability trick to reward. That makes purity and proof the whole ballgame. Our SAC Efficacy Score weights third-party testing and purity most heavily, because an unverified bile-acid capsule is the one thing you cannot fix at home. Dose matters next — the functional range in human and preclinical work sits around 250-500mg/day, and we rewarded products that let you hit it cleanly without proprietary-blend guesswork. Tolerability and safety cover the real-world caveats (bile acids can cause GI upset; ox-bile add-ins are animal-derived). Value is capped at 15% and can only ever break a tie between comparable products — it is never a path to the top. Every product keeps its exact real ASIN, and no score, price, or spec here is invented.
Every Claim Ranked Above Traces Back To One Of These
5 peer-reviewed sources, each linked to PubMed
- [1] Goulis J, Leandro G, Burroughs AK. Randomised controlled trials of ursodeoxycholic-acid therapy for primary biliary cirrhosis: a meta-analysis. Lancet. 1999;354(9184):1053-60. PMID 10509495 — Randomised controlled trials of ursodeoxycholic-acid therapy for primary biliary cirrhosis: a meta-analysis. Across 11 RCTs (1,272 patients), UDCA improved liver biochemistry but showed no significant benefit for death, liver transplantation, or disease progression — the key honesty caveat for the whole bile-acid category.
- [2] Beuers U. Drug insight: mechanisms and sites of action of ursodeoxycholic acid in cholestasis. Nat Clin Pract Gastroenterol Hepatol. 2006;3(6):318-28. PMID 16741551 — Drug insight: mechanisms and sites of action of ursodeoxycholic acid in cholestasis. Details the anticholestatic mechanisms of UDCA (TUDCA's parent bile acid): protecting cholangiocytes, stimulating hepatocellular secretion, and inhibiting bile-acid-induced cell death — the mechanistic rationale for TUDCA.
- [3] Kars M, Yang L, Gregor MF, et al. Tauroursodeoxycholic acid may improve liver and muscle but not adipose tissue insulin sensitivity in obese men and women. Diabetes. 2010;59(8):1899-1905. PMID 20522594 — Tauroursodeoxycholic acid may improve liver and muscle but not adipose tissue insulin sensitivity in obese men and women. A randomized human trial showing 4 weeks of TUDCA improved hepatic and muscle (but not adipose) insulin sensitivity — direct but early human evidence for TUDCA's metabolic effects.
- [4] Pan XL, Zhao L, Li L, et al. Efficacy and safety of tauroursodeoxycholic acid in the treatment of liver cirrhosis: a double-blind randomized controlled trial. J Huazhong Univ Sci Technolog Med Sci. 2013;33(2):189-194. PMID 23592128 — Efficacy and safety of tauroursodeoxycholic acid in the treatment of liver cirrhosis: a double-blind randomized controlled trial. Double-blind RCT concluding TUDCA is safe and appears more effective than UDCA for improving biochemical markers in liver cirrhosis — one of the few direct human TUDCA trials.
- [5] Vang S, Longley K, Steer CJ, Low WC. The unexpected uses of urso- and tauroursodeoxycholic acid in the treatment of non-liver diseases. Glob Adv Health Med. 2014;3(3):58-69. PMID 24891994 — The unexpected uses of urso- and tauroursodeoxycholic acid in the treatment of non-liver diseases. Review of TUDCA's anti-apoptotic and ER-stress-reducing mechanisms and its exploratory roles beyond the liver, underscoring that much of the evidence base remains preclinical and early-stage.
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