Why this matters

Japan is the one major destination where a vaper can't simply restock on arrival: nicotine e-liquid is regulated as an unapproved medicine under the Pharmaceuticals and Medical Devices Act and is not sold anywhere in the country. The domestic market moved to heated tobacco instead, which is why IQOS is everywhere but vape shops sell only nicotine-free liquid.

That makes the personal import allowance the whole game. Misjudge it and you either run out mid-trip with no legal way to buy more, or arrive with a commercial-looking stash that customs can hold.

Restrictions

  • Devices: vape hardware, pods (empty), and nicotine-free e-liquid have no special import restriction.
  • Nicotine e-liquid: up to a 1-month personal supply may be imported without paperwork — in practice applied as up to 120ml. It must be for your own use; supplying it to others is illegal.
  • More than a month's supply: requires a Yunyu Kakunin-sho import confirmation certificate from the health ministry, arranged before you travel.
  • Heated tobacco (IQOS sticks, etc.): regulated as tobacco, not medicine — duty-free allowances for tobacco products apply instead.
  • In transit: the device and spare batteries fly carry-on only and cannot be used or charged on board.

What the official guidance says

MHLW's personal-import guidance allows travelers to bring unapproved medicinal products — the category nicotine e-liquid falls into — up to a 1-month supply without an import certificate, with larger quantities requiring a Yunyu Kakunin-sho. Japan Customs applies these rules at the border. Domestic sale of nicotine e-liquid remains prohibited because no product has been approved, which is why availability inside Japan is limited to nicotine-free liquid and heated tobacco.