What Doesn't Cause Acne
Can Certain Food Cause Acne?

The notion that eating chocolate and greasy foods will cause acne has been passed down for decades and so far there is not any evidence to support this claim. The only way a greasy food, such as pizza or French fries, will cause you to develop acne is if you rub the food all over your face and the grease clogs your pores. While chocolate is a bit more complicated since many people are lactose intolerant, meaning they are allergic to milk. If a person is allergic to milk it could easily cause a number of problems for them, including causing acne. This does not mean that chocolate causes acne, but what it does mean is that your body interpreting milk as a toxin can cause you to develop acne or a number of more serious problems.
Does Makeup Cause Acne?
This issue is more complicated since makeup will directly cause acne, but rather certain makeup can dry out your skin and make you more susceptible to acne developing. The best way to make sure makeup will not dry out your skin and subsequently cause you to develop acne is to only use makeup products that are non-comedogenic or non-acnegnic. In addition, your body might have genetically occurring allergies to certain ingredients, but the only way to discover what makeup products you are allergic to is by trial and error. If a certain makeup dries out your skin, stop using it.
References:
National Institute for Occupational Safety and Health (NIOSH)
Centers for Disease Control and Prevention (CDC)
www.cdc.gov
Haz-Map - Occupational Exposure to Hazardous Agents
Specialized Information Services (SIS)
U.S. National Library of Medicine
National Institutes of Health
hazmap.nlm.nih.gov