Cat's Claw Tea vs. Cat's Claw Capsules: An Honest Format Comparison

June 15, 2026

We sell Uña de Gato (Cat's Claw) two different ways: as 800 mg capsules and as loose tea bags. At least once a week someone asks us which one is "the real one," or which works better, and the honest answer is that they're both the same plant, just prepared for two different kinds of people. Here's how to figure out which one is yours.

The Same Vine, Two Very Different Habits

Both products start with the same source: the inner bark of Uncaria tomentosa, a thick, woody vine that climbs through the Amazon canopy using small hooked thorns, which is exactly where the "cat's claw" name comes from. Communities in the Peruvian Amazon have used preparations of this bark for generations, traditionally as a decoction, bark simmered slowly in water for a long stretch, as part of everyday wellness routines.

From there, the two products diverge completely. The capsules take that bark, dry and grind it, and pack it into an 800 mg tablet. Our current formulation was reworked to use a higher concentration of bark per tablet than earlier versions, so you're getting a meaningfully stronger dose per capsule than you would have a year or two ago. The tea, on the other hand, uses the wild-harvested bark itself in a teabag, closer in spirit to how it's traditionally been prepared, just in a more convenient filter bag instead of a simmering pot.

Capsules: For People Who Want to Not Think About It

If your morning routine already involves a row of supplement bottles on the kitchen counter, the capsules slot right in. You know exactly how much bark you're getting, 800 mg per tablet, there's no taste to get used to, and you can take it with your other vitamins in about four seconds. The tradeoff is that you lose the ritual entirely. It's a supplement, full stop, with none of the slow-down-and-make-a-cup-of-tea experience that a lot of people actually value.

One thing worth knowing: cat's claw bark has a noticeably bitter, woody taste, so the capsule format is also the better choice if you've tried the tea before and didn't love the flavor. Some herbal teas grow on you over time. Cat's claw, for a lot of people, doesn't, at least not right away.

Tea: For People Who Like the Process

The tea comes as 25 filtered teabags made from wild Uña de Gato bark sourced from the Peruvian Amazon. To brew it, use water close to boiling, around 95-100°C, steep covered for 8-10 minutes, and expect a flavor that's earthy and slightly bitter, closer to a dark roasted tea than anything floral. A little honey or a squeeze of lime takes the edge off if the bitterness is too much on its own.

There's also a side benefit that doesn't exist with the capsules: every purchase of the tea contributes 3% of earnings toward Amazon conservation efforts. If part of why you're interested in an Amazonian herb in the first place is a connection to where it comes from, the tea version puts a small piece of that connection back into the rainforest itself.

Dosage and Cost: The Practical Math

The capsules give you a fixed, known amount of bark per dose, every single time, which makes it easy to stay consistent day to day. With tea, the amount of active compound that ends up in your cup depends on water temperature, steep time, and how tightly the bark is packed into the bag, so there's more natural variation from one cup to the next. If you're someone who likes to track a specific daily intake, capsules make that simpler. If cat's claw tea is part of a broader after-dinner routine, alongside something like our Uña de Gato tea or other herbal teas, that variation matters a lot less.

What the Research Actually Shows

Cat's claw's most-studied compounds are a group of alkaloids called pentacyclic oxindole alkaloids, which early lab and animal research has linked to immune-modulating effects, meaning they appear to influence how active the immune system is. A handful of small human trials, mostly looking at joint comfort in people with osteoarthritis or rheumatoid arthritis, have reported modest improvements over several weeks of use. These are real findings worth knowing about, but they come from small studies, and "immune-modulating" is also exactly why the cautions below matter.

Who Should Be Careful

Because cat's claw can affect immune system activity, it's generally not recommended for people with autoimmune conditions like lupus, rheumatoid arthritis, or multiple sclerosis, or for anyone taking immunosuppressant medication, including organ transplant recipients, without talking to a doctor first. It may also interact with blood pressure medication and blood thinners. If you're pregnant or breastfeeding, skip it for now. None of this is meant to scare anyone off; it's the same kind of label-reading we'd want for any supplement, herbal or not, that has a real, documented effect on the body.

If kidney health is more your focus than general immune support, our Riñosan Kidney Cleanse capsules actually include cat's claw as one of several traditional ingredients, alongside chanca piedra and horsetail, so it's worth a look if you want the herb as part of a broader formula rather than on its own.

Bottom Line

Pick the capsules if you want a consistent dose, don't love the taste, and want cat's claw to just be one more thing in your supplement routine. Pick the tea if you like the ritual of brewing, don't mind an earthy, slightly bitter cup, and like the idea of your purchase supporting Amazon conservation along the way. Both are the same plant from the same place; the right one really just comes down to which habit you're more likely to stick with.