Full-spectrum

Full-spectrum describes a cannabis extract that retains essentially the native chemical composition of the source plant: all detectable cannabinoids (including trace THC in hemp products, up to the US federal 0.3 % Δ⁹-THC dry-weight limit), terpenes, flavonoids, and sometimes minor waxes and chlorophyll. It contrasts with broad-spectrum (THC selectively removed) and isolate (a single purified cannabinoid). The label has no universally enforced regulatory definition, and third-party certificates of analysis are the only reliable way to verify that a "full-spectrum" product actually contains a representative minor-cannabinoid and terpene fraction. Proponents invoke the hypothesized entourage effect as rationale for full-spectrum preparations; as discussed under that entry, supporting human evidence is still limited. → See also: Broad-spectrum, Isolate, Entourage effect, Cannabinoid profile.