Nicotine polacrilex and nicotine salts are two different forms of nicotine used in smoking cessation products, but they function in distinct ways:

Nicotine Polacrilex (Nicotine Gum):

Nicotine polacrilex, commonly known as nicotine gum, consists of nicotine bound to a resin complex of polacrilin.
When chewed or sucked, the gum releases nicotine, which is then absorbed through the oral mucosa, providing relief from nicotine cravings.
Nicotine polacrilex delivers nicotine more gradually compared to smoking, helping individuals gradually reduce their dependence on nicotine.
Nicotine Salts:

Nicotine salts are formed by combining nicotine with an organic acid, such as benzoic acid, to create a smoother vaping experience.
They are commonly used in e-liquids for electronic cigarettes and vaporizers.
Nicotine salts provide a faster and more efficient nicotine delivery compared to traditional freebase nicotine, resulting in a smoother throat hit and quicker absorption.