Health Canada is warning people in Canada about the risks of certain henna cone products as they may contain phenol, which may not be listed on the product label. Phenol is a prohibited ingredient on Health Canada's Cosmetic Ingredient Hotlist . Products that contain phenol can be dangerous if they come in contact with the skin, as phenol can cause chemical burns, resulting in redness, blistering and burning or stinging pain. Health Canada has received three incident reports related to henna cones. Two of these reports were related to skin irritations from the use of henna cones and one report indicated that a previously recalled henna cone was still available for sale. These reports led to the sampling and testing of multiple henna cone products by Health Canada, which confirmed the presence of phenol. As a result, Health Canada posted a new recall on March 22, 2024 for three henna cone products for which testing confirmed the presence of phenol. The Department also posted recalls for henna cones previously on April 11, 2017 , May 25, 2017 and May 2, 2018 for the Shakeel Bhai Mehndi Waley Special Bridal Cone. These recalls identify manufactures and importers; however, there may be other importers and sellers of these products across Canada. Health Canada suspects that some other henna cone products sold in Canada may also contain phenol, and is therefore advising consumers to report any adverse reaction to these products, so that appropriate enforcement action can be taken.