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An active ingredient is a substance in a product that
has an effect on the body. It can affect one part of the body (such as the
skin) or the entire body.
A product can have
more than one active ingredient. The active ingredient of a product is
listed on its box or packaging. Also, the amount of active ingredient is usually
A product can also contain inactive
ingredients that do not have an effect on the body. Inactive ingredients can
help with the delivery of the active ingredient or do other things such as
prevent the product from spoiling. These are often listed after the active
ingredient in the ingredient list.
Current as of:
August 21, 2015
Adam Husney, MD - Family Medicine & Amy McMichael, MD - Dermatology
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