The main ingredient in skin toner is water.
Why Water is Key in Skin Toner
Skin toners often serve as a hydrating step in skincare routines, and water is the most common and important base for achieving this effect.
- Hydration: The high water content in toners helps to hydrate the skin, leaving it feeling refreshed. As mentioned in the reference, water is the primary base that contributes to the toner's hydrating properties.
