Japan
Is CBD Legal in Japan?
Status
Restricted
Covers
Jurisdiction
Last updated
May 28, 2026
The short answer
CBD is legal in Japan but governed by what MHLW calls the strictest THC residue standard in the world. Effective December 12, 2024, Japan abandoned its old plant-part rule (which only permitted CBD from stems and seeds) and moved to an ingredient-based regime capping THC content in finished products. MHLW limits are 10 ppm (0.001%) for oils and powders, 1 ppm for edibles and cosmetics, and 0.10 ppm for aqueous solutions. Anything above these thresholds is reclassified as a narcotic and triggers seizure, destruction, and criminal liability.
The standard is effectively zero tolerance for both THC and THCA, since THCA converts to active THC under heat. Importers must present a Certificate of Manufacture and a Component Analysis Report from a certified lab proving compliance. CBD products may be sold as cosmetics, supplements, or foods, but cannot make medical claims. Phase 2 of the reform, effective March 1, 2025, added licensing and mandatory testing protocols, and 2025 saw heightened border and retail inspections.
Key facts ·
Japan
Key facts
Rules at a glance
THC limit
10 ppm (oils/powders), 1 ppm (edibles/cosmetics), 0.10 ppm (aqueous); zero tolerance for THCA
Regulator
Ministry of Health, Labour and Welfare (MHLW) - Narcotics Control Department
Key regulation
Cannabis Control Act (Revised 2023); MHLW THC Residue Notice
Effective
December 12, 2024
Adult-use cannabis
Illegal
Medical cannabis
Limited
For brands and importers
Import and export rules
CBD imports are permitted but heavily documented. Travelers and businesses must present a Certificate of Manufacture and a Component Analysis Report showing THC below MHLW residue caps to the Narcotics Control Department before customs clearance. Products derived from cannabis flower or leaf are rejected outright. Isolates and broad-spectrum oils dominate the legal market; full-spectrum products almost always fail testing.
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