Evidence and label comparisons · WSNC nutrition education
Cat’s Claw Supplements: Bark Extract, POA and Immune Claims
Cat's Claw Forte lists Uncaria tomentosa bark extract and a pentacyclic oxindole alkaloid marker. That standardization helps describe the product but does not establish treatment for an immune or inflammatory disease.

Compare the exact preparation and labeled serving
The checked tablet declares 183 mg bark extract from 2.19 g bark with 3.8 mg POA. The marker amount is part of the extract. Preserve the botanical identity and the current complete label.
The amounts below reproduce the inspected manufacturer online panel. They describe labeled servings, not an individualized regimen. Confirm your selected package and review the full ingredient list and dietary attributes on the product page.
| Product | Declared serving facts | Important distinction |
|---|---|---|
| Cat's Claw ForteView product → | Declared serving factsEach Serving Size (1 Tablet) contains: Calcium 38 mg, Cat's Claw Bark 12:1 extract 183 mg (from Uncaria tomentosa bark 2.19 g, Containing POA (Pentacyclic Oxindole Alkaloids) 3.8 mg). | Important distinctionRead the complete Cat's Claw Forte ingredient list and current package. The serving facts describe this formula; a shared ingredient does not make it equivalent to another product. |
References: WSNC Cat's Claw Forte recorded label details ↗ · Cat's Claw: Usefulness and Safety | NCCIH ↗
What the ingredient evidence can establish
NCCIH finds no conclusive human evidence supporting cat's claw for a health purpose. Small studies and methodological limitations prevent broad conclusions from traditional use or laboratory findings.
Species, plant part and extract composition matter. A proposed immune mechanism should not be presented as proven infection prevention or an effect of every standardized bark product.
References: Cat's Claw: Usefulness and Safety | NCCIH ↗
Review suitability, medicines and the whole formula
Autoimmune conditions, anticoagulant or antiplatelet drugs, blood-pressure medicines and planned surgery warrant review. Pregnancy may be unsafe and nursing safety is uncertain. An immune-support description is not a safety assurance.
Ask whether there is a sound reason to consider the product and how medicines or autoimmune history affect that decision. Avoid a disease-treatment conclusion from the ingredient name.
References: WSNC Cat's Claw Forte recorded label details ↗ · Cat's Claw: Usefulness and Safety | NCCIH ↗
Prepare a focused practitioner conversation
Bring the selected label, your reason for considering cat’s claw, and a list of medicines and other supplements. Compare the intended outcome with the specific preparation studied, and agree how suitability and any benefit will be assessed.
Manufacturer suggested-use text checked for these products: Cat's Claw Forte: 1 tablet 2 – 3 times daily, or as directed.
These are separate product instructions, not one combined supplement schedule. Keep the current package directions with your practitioner plan; ingredient research does not override manufacturer labeling.
References: WSNC Cat's Claw Forte recorded label details ↗ · Cat's Claw: Usefulness and Safety | NCCIH ↗
Common questions
How should I compare cat’s claw supplement labels?
The checked tablet declares 183 mg bark extract from 2.19 g bark with 3.8 mg POA. The marker amount is part of the extract. Preserve the botanical identity and the current complete label.
Does ingredient research prove the complete formula works?
Species, plant part and extract composition matter. A proposed immune mechanism should not be presented as proven infection prevention or an effect of every standardized bark product.
What should I discuss before considering cat’s claw?
Autoimmune conditions, anticoagulant or antiplatelet drugs, blood-pressure medicines and planned surgery warrant review. Pregnancy may be unsafe and nursing safety is uncertain. An immune-support description is not a safety assurance.
Evidence and product label sources
WSNC label links below present recorded Standard Process product information on our site. Noncommercial references explain ingredients, evidence limits and safety; they do not verify every formula amount or establish a treatment outcome for a finished product or protocol. The referenced organizations do not endorse this store.
Manufacturer nutrition-panel amounts shown here were checked October 14, 2026. Confirm the current packaging, directions and dietary information before use. Your healthcare practitioner can help assess individual suitability.
How we research products → · Prepare a practitioner conversation →
