Is THCP Legal?
State-by-state legal guide — updated for 2026 federal changes.
What is THCP?
THCP (tetrahydrocannabiphorol) is a naturally occurring cannabinoid discovered in 2019. It has a longer alkyl side chain than THC, making it potentially 30 times more potent at binding to CB1 receptors. THCP is found in very small amounts in cannabis plants and most commercial THCP is synthesized.
Federal Status
THCP occurs only in trace amounts, so commercial THCP is almost always synthesized — and its extra-long side chain makes it exceptionally potent. Section 781 of the 2026 law excludes synthesized cannabinoids from the definition of hemp, making THCP a federally controlled substance on November 12, 2026.
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THCP Laws by State
Restricted (1 states)
Gray Area (29 states)
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