If you are looking for a clear and fresh quality nicotine for mixing your e liquid we can provide it. Always be careful when handling nicotine, use gloves and make sure you store it in a save and secure place away from animals and children. Nicotine is toxic.Nicotine in different strengths, 100 mg, 50 mg, 36 mg and 18 mg. Nicotine concentrate should be diluted before use. Nicotine concentrate solution is for use by trained personnel only. Familiarise yourself on how to use nicotine safely, before mixing. Best kept in freezer.