Is Tar a substance in tobacco products that causes stain, teeth and skin

No, tar is not directly responsible for causing stains on teeth and skin in tobacco products. However, tar is one of the many harmful substances present in tobacco smoke. It is a thick, sticky residue that collects in the lungs when tobacco is smoked, and it can have numerous negative effects on health.

Tar can contribute to discoloration of teeth over time when it combines with other substances found in tobacco smoke, such as nicotine and other chemical compounds. These can cause yellow or brown stains on teeth called "smoker's teeth."

Additionally, tar can also accumulate on the skin and contribute to various skin issues, such as premature aging, wrinkles, and a dull complexion. However, skin discoloration associated with tobacco use is primarily caused by the reduced blood flow to the skin, which results in a pale or grayish appearance.

While tar is not the sole factor responsible for staining teeth and skin in tobacco products, it is certainly one of the many harmful components that contribute to these effects.