Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Viscosity Controlling
Controls excess oil
Minimizes pores
Traditional Use
A specially denatured alcohol variant with specific denaturant additives, established under 20th-century U.S. tax code. Used in cosmetics as a solvent and preservative while meeting regulatory requirements for non-beverage alcohol.