Carbon black + coal tar are thick, dark liquids that are by-products of the production of coal gas from coal. It has cosmetic, medical, and industrial uses.
Carbon black + coal tar are dark black powder generally used as a pigment in cosmetics. They are linked to increased incidence of cancer and negative effects on organs.
The U.S state of California recognizes Coal Tar as a carcinogen [1]. Both Coal tar and Carbon black are represented on the California State “Cosmetics Containing Ingredients Linked to Cancer or Reproductive Harm” list [4]. The Canadian Government has banned the use of coal tars “crude and refined” [2].
[1] OHHA (California Office of Environmental Health Hazard Assessment). Known Carcinogens and Reproductive Toxicants, California Proposition 65. Page 7. https://oehha.ca.gov/proposition-65/proposition-65-list
[2] Government of Canada’s “Hotlist” of banned and restricted ingredients. (2019). https://www.canada.ca/en/health-canada/services/consumer-product-safety/cosmetics/cosmetic-ingredient-hotlist-prohibited-restricted-ingredients/hotlist.html#t1c
[3] CDC. NIOSH Pocket Guide to Chemical Hazards. Carbon Black. https://www.cdc.gov/niosh/npg/npgd0102.html
[4] CDPB (California Department of Public Health). Cosmetics Containing Ingredients Linked to Cancer or Reproductive Harm. Page 10 and 40. (2009-2015) https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/OHB/CSCP/CDPH%20Document%20Library/DataReport.pdf