This systematic review published in 2021 assessed the health promoting effects of piperine found in black pepper (Piper nigrum). Piperine has also been documented for its hepatoprotective, anti-allergic, anti-inflammatory and neuroprotective properties.
Haq, I. U., Imran, M., Nadeem, M., Tufail, T., Gondal, T. A., & Mubarak, M. S. (2021). Piperine: A review of its biological effects. Phytotherapy research : PTR, 35(2), 680–700. https://doi.org/10.1002/ptr.6855