The vast majority of reactions to hair-dye products are caused by PPD. [4–6] In past years, PPD was used in permanent hair dyes but not in semipermanent dyes. More recently, PPD has been used in ...
Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...
Right now, however, it's the youngest of her three kids, Colton, who is hogging the limelight on social media on account of something rather unusual: his hair. "We started noticing his unique hair ...
Now that the US Food and Drug Administration has banned red dye No. 3, many people are criticizing or questioning the safety and the FDA’s allowance of red dye No. 40 and five other color ...