Warning About Products Exceeding the Delta-9-THC Residue Limit
Overview
On November 10, 2026, the Ministry of Health, Labour and Welfare reported that a Tokyo purchase survey detected delta-9-THC above the residue limit set by government ordinance in “RR Roll-On.” It advised that the product qualifies as a narcotic under the Narcotics and Psychotropics Control Act and urged people not to sell, buy, or use it. Purchasers were asked to stop using it and submit the product to a Narcotics Control Department; retailers were asked to stop sales and contact the pharmaceutical affairs section of their prefecture. As of now, the ministry is not aware of any reported health harm in Japan from use of this product.
Key points
- A Tokyo purchase survey detected delta-9-THC above the residue limit in “RR Roll-On.”
- The product qualifies as a “narcotic” under the Narcotics and Psychotropics Control Act.
- No cases of health harm from use of this product in Japan are known to date.
Overview
The Ministry of Health, Labour and Welfare posted an announcement that a Tokyo purchase survey detected delta-9-THC above the residue limit in one product. The product was “RR Roll-On.”
The source explains the residue limit as the amount established by government ordinance at which no health and hygiene hazard from delta-9-THC abuse occurs.
Impact
People are urged not to sell, buy, or use the product.
Details
Purchasers should stop using the product and submit it, by bringing it in or mailing it, to the nearest Regional Bureau of Health and Welfare Narcotics Control Department (branch office). For mailing, use a trackable method with reliable in-person delivery, such as Letter Pack Plus; cash-on-delivery is not accepted. When submitting in person, complete the “Voluntary Submission and Waiver of Ownership” form in Attachment 2; when mailing, enclose the same form. See Attachment 3 for mailing details.
Retailers should stop selling the product and contact the pharmaceutical affairs section of the nearest prefectural health department.