
A Primer on Primers, Foundations, and Cream-Based Makeup
Primers, foundations, and cream-based makeups are applied first to give the face a smooth appearance. These products are usually not toxic to the skin unless contaminated with bacteria or other chemicals. Ingestion of a large quantity of cream-based makeup can cause diarrhea. If you are allergic, redness, itching, swelling, and rash may occur.