What it is
Oregano oil contains volatile compounds such as carvacrol and thymol; essential-oil concentration and route of use materially affect safety.
Core function and why it is studied
Its composition or proposed mechanism makes digestive function, immune function logical research areas. Studies therefore examine microbial and digestive measures. That biological connection explains why it is studied; it does not by itself establish a meaningful benefit.
What the evidence means
Reliable direct human evidence is not sufficient to support a product-wide benefit claim. Laboratory, animal, or traditional-use evidence should not be presented as a demonstrated human outcome.
How to compare products
Compare species, plant part, extract ratio, solvent, standardized constituents, serving amount, and contaminant testing.
