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Best cat's claw (Uncaria tomentosa) 500mg supplements?

Comparing cat's claw bark supplements for antimicrobial protocols. The protocol specifies Uncaria tomentosa (not U. guianensis) at 500 mg per capsule, shown to have activity against Borrelia persisters in laboratory studies.

📅 Created: 3/4/2026, 5:21:21 AM
Rating ▼BrandCost/ServingProtocol MatchSpecies/PartForm
5.0 (1)NOW Foods Cat's Claw 500mgUSD 0.09
Exact
U. tomentosa inner bark, 500mg
U. tomentosa (bark)Veg capsule
4.0 (1)Solaray Cat's Claw Bark 500mgUSD 0.12
Exact
U. tomentosa inner bark, 500mg
U. tomentosa (inner bark)VegCap
4.0 (1)Nature's Way Cat's Claw Bark 485mgUSD 0.14
Exact
U. tomentosa bark, 485mg ≈ 500mg
U. tomentosa (bark)Vegan capsule
4.0 (1)Nutricost Cat's Claw 1000mg (4:1 Extract)USD 0.12
Partial
4:1 extract, different preparation from whole herb studied
U. tomentosa (bark)Veg capsule
3.0 (1)Swanson Full Spectrum Cat's Claw 500mgUSD 0.05
Partial
Uses root, not inner bark
U. tomentosa (root)Gelatin capsule

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