PPD (Paraphenylenediamine): Allergen or Not An Allergen?
Allergen PPD (Paraphenylenediamine) American Contact Dermatitis Society‘s Allergen of the Year in 2006, PPD or paraphenylenediamine is no joke, especially in hair dye, where it’s most known for causing trouble. This is not surprising considering how severe some reactions can be and how hard it is to find an alternative. PPD may be “just one ingredient” but […]
BLACK HENNA: Allergen or Not An Allergen?
Allergen. Black Henna Pure, organic henna with no additives is generally not allergenic, but black henna is. In a big way. The reason for this is that black henna has PPD or para-phenylenediamine (which is on published common allergen lists) added to it to make its color black, to make it more vivid, and to make it look […]