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Table 1 Description of non-combustible nicotine products (NCNPs) products

From: Oral health effects of non-combustible nicotine products: protocol for a systematic review and network meta-analysis

Product

Description

Common formats

Nicotine content

E-cigarettes

(e-cigs)

Battery-operated devices that produce an aerosol containing nicotine and flavorings

Portable devices, cartridges

Nicotine concentrations range from 0 (nicotine-free) to 50 mg/mL (5%) in nicotine salt formulations

Heated tobacco products (HTPs)

Devices that heat tobacco without combustion, releasing nicotine in vapor

Portable devices, tobacco sticks

Nicotine content varies, typically ranging from 0.5 to 14 mg per tobacco stick

Nicotine pouches

Small sachets containing nicotine and flavorings, placed between lip and gum

Small pouches or sachets

Nicotine content typically ranges from 1 to 20 mg per pouch

Snus (smokeless tobacco)

Ground tobacco leaves mixed with salt, water, and sometimes flavorings, placed under the lip

Loose or portioned pouches

Nicotine content varies, typically ranging from 4 to 20 mg per portion

Gutka (smokeless tobacco)

A mixture of powdered tobacco, areca nut, and slaked lime

Loose form or portioned pouches

Nicotine content varies widely, typically ranging from 6 to 20 mg per portion

Nicotine replacement therapies (NRTs)

Medically approved products providing nicotine without tobacco, available in different formulations

Patches, gums, lozenges, inhalers, mouth spray

Patches: 7–21 mg/patch

Gum/lozenges: 2 to 4 mg. Inhalers: 10 to 15 mg per cartridge