In a study published in the Journal of Visualized Experiments, scientists from Cornell University designed a filter made with lycopene and grape seed extract. These natural antioxidants reduce the amount of free radicals inhaled during cigarette smoking.
While tobacco tars and other ingredients in cigarettes are the major causes of carcinogens and disease, free radicals produced and inhaled during smoking attack cells, damaging protein structure and increasing the risk of a person developing lung cancer. Reducing the number of free radicals therefore could make cigarettes a bit safer.
Filters that work in similar ways have already been studied, but because they can be expensive to produce they have not been adopted by cigarette manufactures. The advantages of using antioxidants such as lycopene and grape seed extract is that they’re cheaper to produce.
Unfortunately, scientists also noticed the filters made out of the antioxidants lost much of their efficacy after a week in storage at room temperature.
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