This is because black henna comprises para-phenylenediamine (PPD), a substance that can cause serious skin reactions. ❋ Unknown (2009)
•Non-Hodgkin's lymphoma has increased 76 percent due mostly to phenoxy herbicides; and phenylenediamine hair dyes; ❋ Unknown (2009)
Reflex is a semi-permenant hair colourant that is perfect for subtle experimenting as it lasts up to four weeks and is free from ammonia, resorcinol, peroxide and P-phenylenediamine PPD. ❋ Thatsnews (2008)
Many other countries, including Japan, have banned carcinogenic hair-color ingredients, the most notorious of which is phenylenediamine PPD. ❋ Kat James (2007)
Although you can develop an allergy to many ingredients in hair coloring, the most likely culprit is a chemical called para-phenylenediamine (PPD). ❋ Unknown (2007)
A chemical found in most hair dyes called paraphenylenediamine (or p-phenylenediamine, or PPD), is another common allergen. ❋ Unknown (2010)
Perchloric acid (PCA) (Merck) and o-phenylenediamine (Across) were added to a final concentration of 0.5 M and 5 mM, respectively. ❋ Arunava Dasgupta Et Al. (2010)
Factbox: "Dirty dozen" chemicals worth avoiding: 1. BHA and BHT: A preservative in makeup and moisturizers that can disrupt the endocrine system, cause cancer and harm fish and wildlife 2. Coal tar dyes including p-phenylenediamine and numbered colours listed as "CI": Used in some hair dyes and other cosmetics; may cause cancer or contain heavy metals considered toxic to the brain. ❋ Unknown (2010)
"Dirty dozen" chemicals worth avoiding: 1. BHA and BHT: A preservative in makeup and moisturizers that can disrupt the endocrine system, cause cancer and harm fish and wildlife 2. Coal tar dyes including p-phenylenediamine and numbered colours listed as "CI": Used in some hair dyes and other cosmetics; may cause cancer or contain heavy metals considered toxic to the brain. ❋ Unknown (2010)
Non-Hodgkin's lymphoma has increased by 76% due mostly to phenoxy herbicides; and phenylenediamine hair dyes; ❋ Unknown (2010)
The plates were washed and o-phenylenediamine substrate was added (100 µl per well). ❋ Unknown (2009)
Samples were mounted in p-phenylenediamine / glycerol (1: 1) and analyzed by confocal microscopy (Zeiss dual-laser confocal microscope). total RNA from Caco2-BBE cells, mucosa of mouse colon tissue and patients biopsy specimens were extracted with TRIzol reagent (Invitrogen, Carlsbad, CA), reverse transcribed using the Thermoscript ™ RT-PCR System (Invitrogen, Carlsbad, CA) and purified with the RNeasy Mini Kit ❋ Unknown (2009)
The Shanghai FDA is also checking Revlon black hair dye and four Guangdong brands that were found to contain the banned chemical m-phenylenediamine by Guangdong authorities.
Hair dyes with ammonia, peroxide, p-phenylenediamine, diaminobenzene, and all dark permanent hair dyes ❋ Unknown (2009)
Hair dyes with ammonia, peroxide, p-phenylenediamine, diaminobenzene; all dark permanent hair dyes ❋ Unknown (2008)
Examples include: oMalignant melanoma of the skin in adults is increasing by 168% due to the use of sunscreens in childhood that fail to block long wave ultraviolet light; oThyroid cancer is increasing by 124% due in large part to ionizing radiation; oNon-Hodgkin's lymphoma is increasing 76% due mostly to phenoxy herbicides; and phenylenediamine hair dyes; oTesticular cancer is increasing by 49% due to pesticides; hormonal ingredients in cosmetics and personal care products; and estrogen residues in meat; oChildhood leukemia is increasing by 55% due to ionizing radiation; domestic pesticides; nitrite preservatives in meats, particularly hot dogs; and parental exposures to occupational carcinogens; oOvary cancer (mortality) for women over the age of 65 has increased by 47% in African American women and 13% in Caucasian women due to genital use of talc powder; oBreast cancer is increasing 17% due to a wide range of factors. ❋ Unknown (2010)
