---
type: restriction
id: royal-mail-post-office-poisons-toxic-liquids-solids-and-gases
asset: shipping-restrictions-by-class
title: "Poisons, toxic liquids, solids and gases — Postal shipping restrictions by item category"
sources:
  - https://www.postoffice.co.uk/mail/what-can-i-send
source_quote: "International – not allowed in the mail"
generated: true
harvested: 2026-08-03
stale_after: 2027-08-03
item_category: "Poisons, toxic liquids, solids and gases"
carrier: "Royal Mail / Post Office"
restriction_type: "prohibited"
scope: "UK & International"
conditions: "International – not allowed in the mail"
verified: false
unverified_fields: carrier, item_category, scope
---
**Item category:** Poisons, toxic liquids, solids and gases

**Carrier:** Royal Mail / Post Office

**Restriction type:** prohibited

**Scope:** UK & International

**Conditions:** International – not allowed in the mail

> International – not allowed in the mail

Source: <https://www.postoffice.co.uk/mail/what-can-i-send>