COSRX Low pH PHA Barrier Mist - "Maintain a fresh-faced complexion with COSRX's Low pH PHA Barrier. Infused with 0.5% gluconolactone (PHA) and 98.10% coconut fruit extract, this facial mist hydrates, softens and regulates your skin's pH levels for a smoother and more youthful appearance. The formula also works as a shield that keeps other skin care formulas from evaporating off the skin." Net Vol. 75ml | USD$20 / Php 900 via dermstore.com