Head on over to DAME Magazine to read this quick and well written article written by Katherine Fleming. It'll provide insight into some very basic and ubiquitous skincare ingredients.
How Antifreeze Wound Up in Your Cosmetics
Nice work! This discusses the use of Propylene Glycol (which is a "safe" anti-freeze as opposed to the more typical Ethylene Glycol).
P.S. It's nice to be back!