99% pure nicotine refers to nicotine with a purity level of 99%, indicating that it contains very minimal impurities. This high level of purity makes it suitable for various industrial and pharmaceutical applications, including the production of nicotine-based products such as e-liquids for vaping, nicotine patches, gums, and other nicotine replacement therapies. However, due to its high potency, handling 99% pure nicotine requires careful attention to safety protocols to prevent accidental exposure or ingestion, as even small amounts can be harmful. Manufacturers and users must follow strict guidelines for storage, handling, and disposal to ensure safety and compliance with regulations.