Samento is an extract of Cat's Claw.
Here is what Cowden says about
it: "One difference between Samento and Cat’s Claw is that Cat’s Claw is an immune system stimulant and Samento is an immune system modulator."
www.nutramedix.ec/ns/samentoAnd here is what Buhner says:
buhnerhealinglyme.com/herbs/starting-protocol-with-cats-claw/"if you are only going to use one herb I would suggest Japanese knotweed. You may be able to find it growing wild in your area, the root is the part to use. Still,
the cat’s claw will help your immune function a lot."