Full extract cannabis oil, often referred to as FECO or RSO, is a concentrated form of cannabis oil that retains a wide range of naturally occurring plant compounds, including cannabinoids and terpenes. As a full-spectrum extract, it is commonly discussed in research and user-led contexts where the interaction between multiple compounds is of interest.

This type of oil differs from more refined products in that it preserves the broader profile of the original plant. Discussions around full extract oils often focus on composition, potency, and the presence of THC alongside other cannabinoids.

Individuals exploring this category typically seek information on formulation differences, responsible use considerations, and how full-spectrum products compare to CBD-only alternatives. Product availability, strength, and composition may vary depending on source and preparation method.