[glycerin supply and sales] glycerin in e-cigarette oil and precautions
the main ingredients in e-cigarette oil are pg (propylene glycol) and vg (vegetable glycerin), flavors and nicotine. the following will give you a detailed understanding of the glycerin in e-cigarette oil and precautions: what is the glycerin in e-liquid? glycerin (also known as glycerin) is a colorless, odorless, sweet-tasting organic substance that appears as a…

