Nicotine 99% refers to a highly concentrated form of nicotine that is 99% pure. This type of nicotine is commonly used in various industries, including pharmaceuticals, vaping, and agriculture. In the vaping industry, nicotine 99% is often diluted with other ingredients to create e-liquids with different nicotine strengths. It's essential to handle nicotine 99% with extreme caution due to its high potency and toxicity. Proper safety precautions should be followed, and accurate measurements are crucial when working with this concentrated form of nicotine. Additionally, ensure compliance with regulations and guidelines governing the purchase and use of nicotine products in your area.