A lightweight ingredient that helps preserve the formula, reduce excess oil, and enhance absorption. It also helps distribute other beneficial ingredients evenly throughout the product.
Solubility greater than or equal to 100 mg/mL at 73 °F (NTP, 1992)
Formula
C2H6O
Mol. Weight
46.07
CAS #
64-17-5
Form
Liquid
State
Ethanol with a small amount of an adulterant added so as to be unfit for use as a beverage.
See origin →
Functions
Antifoaming
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Fragrance
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Thickener
Controls excess oil
Minimizes pores
Traditional Use
Ethanol has been used as a preservative and solvent in cosmetics since at least the 15th century when alcohol distillation became widespread in Europe. Became the standard skincare solvent and preservative in modern cosmetics by the 19th century.