Nicotine is the addictive substance present in tobacco crops. Benzoic acid is also naturally found in vegetation, and is used commercially in dyes, perfumes, insect repellants, and food preservatives. Existing cell, animal, and clinical research counsel that glycerin and propylene glycol irritate the lining of the lungs. One small scientific research from 2018 that found that the compounds changed vapers’ sputum—the mucosal lining that covers the internal respiratory tract—to precise totally different immune proteins. Some of these protein changes have been linked to bronchial asthma. Sign up for our Health Tip of the Day e-newsletter, and obtain every day suggestions that can help you stay your healthiest life.

Juul