Nicotine extract is mainly used as a specialized raw material in industries such as:

• Tobacco & nicotine products — for manufacturing and formulation.
• E-liquids & vaping products — as a nicotine ingredient where legally permitted.
• Nicotine pouches & oral products — for controlled nicotine formulations.
• Pharmaceutical research — as a raw material for certain nicotine-based products and research.
• Laboratories & analytical research — for testing, standards, and scientific studies.
• Chemical and formulation industries — as an intermediate or specialty ingredient in permitted applications.

In short: Nicotine extract is primarily used by tobacco, nicotine-product, pharmaceutical, laboratory, and specialty chemical industries, subject to applicable regulations.