Butylene Glycol

Butylene glycol is used to hydrate and moisturize skin and hair and improve texture in cosmetics and personal care products. It is also a penetration enhancer, allowing other ingredients to be absorbed more easily into the skin. 

Sources of Exposure: Cosmetics and personal care products.

Health Impacts: Butylene glycol can cause irritation to the skin and the eyes when it comes into contact with them. This chemical is a penetration enhancer that allows other chemicals to absorb more easily to your skin, which can be dangerous if other harmful ingredients and contaminants are in the product.