Neostrata PHA renewal pads are pre-soaked tonic pads for the face are infused with 4% Polyhydroxy Acid (PHA), which is suitable for sensitive skin, gently exfoliates dull skin to reveal a more radiant, even appearance. Use twice daily after cleansing to balance reset and prime skin for other regimen products that follow Remove remaining traces of dirt and impurities. Gentle exfoliation Renewed radiance.