Plastic compounds used in shampoos and caulking are classified as food additives
(NaturalNews) Many chemical compounds are approved by the FDA for use as food additives. One case in point is the chemical polydimethylsiloxane.
Though the additive is approved for use by the FDA, it is certainly not something that would have been eaten by our ancestors. It does not occur naturally in the world. Our bodies are not meant to eat these types of chemicals, and at best, consumption of polydimethylsiloxane can create more work for our bodies to eliminate.
Learn more: http://www.naturalnews.com/048523_food_additives_defoaming_agent_polydimethylsiloxase.html#ixzz3XNx4VgVz