Ethanol
Ethanol (commonly listed as Alcohol) is a simple alcohol with CAS # 64-17-5. It functions as a solvent, penetration enhancer, astringent, antimicrobial agent, and viscosity controller in cosmetic formulations. It is widely used in toners and oily-skin products due to its ability to create light, cosmetically elegant formulas. It is also used in hand sanitizers and other antimicrobial products.
Alcohol acts as an effective solvent and penetration enhancer, helps create lightweight, non-greasy formulas, and provides astringent and antimicrobial properties. It is particularly popular in toners and formulas targeting oily skin.
Can be very drying when listed among the first few ingredients. Some experts suggest that regular exposure may damage the skin barrier and cause inflammation, though this remains a debated opinion. Generally considered a controversial ingredient in skincare.
