Hydroxyphenyl Propamidobenzoic Acid ek synthetic ingredient hai jo face ke redness ko kam karne aur reactive ya sensitive skin ko calm karne mein madad karta hai. Yeh histamine-related pathways ko regulate karke kaam karta hai. Iska use generally formulations mein kiya jata hai jab skin irritation aur sensitivity ke saath jhujhna padta hai.