"Pure nicotine liquid" refers to a highly concentrated form of nicotine used in various industries, including vaping, pharmaceuticals, and agriculture. It is typically derived from tobacco plants and undergoes purification processes to remove impurities, resulting in a clear and potent liquid. Pure nicotine liquid is available in various concentrations, allowing vapers to customize the nicotine strength of their e-liquids according to their preferences. However, it's important to handle pure nicotine liquid with caution, as it is highly toxic in its concentrated form. Proper safety precautions should be followed, and it should be stored securely away from children and pets. Additionally, accurate measurement and dilution are crucial when using pure nicotine liquid to ensure safety and consistency in the final product.