Shipping Restrictions - What Can You Send in the Mail? | USPS
To ship hand sanitizers including wipes, you must use USPS Retail Ground, Parcel Select, or Parcel Select Lightweight. These services are only available through your local Post Office ™ branch.. Most hand sanitizers, including wipes, contain alcohol and are flammable in nature and are therefore handled and shipped as hazardous mater (HAZMAT) in the US Mail ™.