Coal tar, which is distilled from coal, has been used in dandruff shampoo for decades. But it is now banned in all consumer goods in Europe because of health concerns.

He also compounds coal tar products for patients with a doctor's prescription. Prescription concentrations can go up to 10 percent. Coal tar "is a very old formulation.

Ask the GP: Try coal tar soap to help cure that itch . Expand. I've been suffering from an itchy scalp for months now . By Dr Martin Scurr. October 31, 2019 at 1:00am GMT.

The kind you’d put into a bath, or find in lotion or soap, is called colloidal oatmeal. ... But the FDA says it’s safe to use anything with between 0.5% and 5% coal tar for psoriasis.

These colors, for there are many of them, have been prepared from the alkalies of coal tar by Messr3. W. ... pink, and red. These colors stand light and soap, which the originals, safflower ...

Be aware, though, that shampoo with coal tar might make your scalp more sensitive to the sun. Tar can stay on your skin for 24 hours or longer, and your chances of sun damage go up during that time.