For pure liquid nicotine, you can find suppliers that specialize in providing high-quality nicotine products for various industries. Some reputable suppliers offering pure liquid nicotine include Nicotine India, AYUSH Herbs, Alchem International, and Inovogen Life Sciences. These suppliers offer pure liquid nicotine in different concentrations to meet the needs of pharmaceutical, agricultural, and vaping applications. Prior to making any purchases, ensure to verify the credentials and reputation of the suppliers to ensure reliability and product quality.