Chaparral is the resinous leaf and twig material of Larrea tridentata, a desert shrub of the American Southwest. Its distinctive scent and place in regional folk practice are real. Oral chaparral also has documented liver-injury reports, making preparation and route unusually important.
Traditional Uses & Why Herbalists Value It
Southwestern folk traditions use chaparral's resinous leaves and twigs in washes and other external preparations, with internal uses also recorded historically. Its strong desert-shrub aroma is characteristic. The external-wash tradition provides useful context while the liver risk makes oral use a distinct concern.
What Modern Research Has Found
Research describes phenolics such as NDGA and explores their activity in laboratory models. Human reports link oral chaparral products with serious liver injury. A clinically established safe, beneficial oral use has not been demonstrated.
Plant Part, Preparation & Natural Constituents
Leaves and twigs contain resinous phenolics, including nordihydroguaiaretic acid (NDGA). An external preparation and a swallowed extract present different exposures.
Sources & Further Reading
