While quitting smoking is primarily a matter of changing behaviors and breaking the addiction to nicotine, there are some supplements that may help support the quitting process. Here are some examples:

Nicotine replacement therapy (NRT) products: These are products that contain small amounts of nicotine and can help reduce withdrawal symptoms while quitting smoking. Examples include nicotine gum, lozenges, patches, and inhalers.

Vitamin C: Vitamin C can help repair damage to the body caused by smoking, and may help reduce cravings.

Magnesium: Magnesium can help reduce anxiety and irritability associated with nicotine withdrawal.

N-acetylcysteine (NAC): This supplement can help reduce cravings and reduce damage to the lungs caused by smoking.

L-tyrosine: This amino acid can help improve mood and reduce stress, which may be helpful during the quitting process.

B-complex vitamins: B vitamins can help reduce stress and improve mood, which can be helpful when quitting smoking.

It’s important to note that supplements should be used as part of a comprehensive approach to quitting smoking, including behavioral changes and support from healthcare providers or addiction specialists. It’s also important to talk to a healthcare provider before taking any supplements, as they may interact with other medications or have potential side effects.