Coal tar ek topical active hai jo coal ke distillation se aata hai. Iska use scaling aur inflammatory skin conditions jaise psoriasis, seborrheic dermatitis, aur eczema ke liye hota hai. Ye excessive skin cell proliferation ko slow karta hai aur inflammation ko reduce karta hai. Skin ke cell turnover ko manage karne mein bahut effective hai aur itching aur redness ko calm karta hai.