According to the Manchester Evening News, recent reports suggest that women ingest about 5lb of chemicals in their lifetime just from their beauty regime, with lipstick being the primary culprit. Outside of ingestion due to licking and biting, lipstick is found to be absorbed right through our lips, directly into our bloodstream.
More importantly, some lipsticks has been shown to contain trace amount of lead.
Kinda makes you wonder just what we're eating!! If you want more information on the toxicity levels of your favroite cosmetics and skin care product, check out Skin Deep.