Nicotine is the addictive substance present in tobacco vegetation. Benzoic acid is also naturally present in crops, and is used commercially in dyes, perfumes, insect repellants, and meals preservatives. Existing cell, animal, and scientific studies counsel that glycerin and propylene glycol irritate the liner of the lungs. One small clinical examine from 2018 that discovered that the compounds modified vapers’ sputum—the mucosal lining that covers the internal respiratory tract—to specific completely different immune proteins. Some of these protein modifications have been linked to asthma. Sign up for our Health Tip of the Day newsletter, and receive day by day tips that can assist you to stay your healthiest life.

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