Health Ministry Warns Against Cannabis-Derived Product Found Over Legal THC Limit
The Ministry of Health, Labour and Welfare has warned consumers not to use, buy or sell a roll-on product called 'RR Roll-On' after Tokyo found it contained Delta-9-THC above the legal residual limit.
Key Points
- • Tokyo's inspection found 'RR Roll-On' exceeded the legal Delta-9-THC residual limit
- • The ministry says the product qualifies as a 'narcotic' under the Narcotics and Psychotropics Control Act
- • Buyers are told to stop use and submit the product to a regional Narcotics Control Department
- • No health damage cases from the product have been confirmed so far, per the ministry
The Ministry of Health, Labour and Welfare issued a notice on November 10, 2026, warning the public about a product found to contain Delta-9-THC in excess of the legally permitted residual limit [1]. The warning follows a purchase-based inspection conducted by the Tokyo Metropolitan Government, which detected the excess THC in a product named "RR Roll-On" [1]. The residual limit refers to the amount set by government ordinance as the level below which no health hazard is expected from abuse of Delta-9-THC [1]. Because the product exceeds this limit, the ministry states it falls under the definition of "narcotic" under the Narcotics and Psychotropics Control Act, and it is urging people not to sell, purchase or use it [1]. The ministry also noted that, as of the notice's issuance, it is not aware of any cases of health damage in Japan resulting from use of this product [1]. For individuals who purchased the product, the ministry is asking them to stop using it and to submit it to the nearest Narcotics Control Department of a regional health bureau, either in person or by mail using a trackable method that guarantees face-to-face receipt, such as Letter Pack Plus; cash-on-delivery shipping is not accepted [1]. Those bringing the product in person are asked to prepare a "voluntary submission and waiver of ownership" form in advance, and those mailing it in are asked to enclose the same form, with further mailing details provided in an attachment to the notice [1]. Retailers currently selling the product are asked to stop sales immediately and contact the pharmaceutical affairs division of their prefectural health administration department [1]. Readers who may have purchased
Source credit 出典：「残留限度値を超えるΔ９-THCが検出された製品に対する注意喚起について」（厚生労働省）（https://www.mhlw.go.jp/stf/houdou/0000212707_00059.html）、PDL1.0（https://www.digital.go.jp/resources/open_data/public_data_license_v1.0）を加工してJapan News (j.apan.news)が作成 This article is Japan News's own English summary of the Japanese original. It has been translated and edited by Japan News; it is not an official translation, and the Ministry of Health, Labour and Welfare did not write or review it.
Sources
This article was written by AI from these Japanese-language reports. Check them before acting on anything here.
- [1] Ministry of Health, Labour and Welfare — original report (Japanese)
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