Nicotine is the addictive substance present in tobacco plants. Benzoic acid can also be naturally present in plants, and is used commercially in dyes, perfumes, insect repellants, and meals preservatives. Existing cell, animal, and scientific research counsel that glycerin and propylene glycol irritate the lining of the lungs. One small medical research from 2018 that discovered that the compounds modified vapers’ sputum—the mucosal lining that covers the internal respiratory tract—to precise completely different immune proteins. Some of these protein modifications have been linked to bronchial asthma. Sign up for our Health Tip of the Day newsletter, and obtain daily suggestions that can help you stay your healthiest life.

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