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 ...
Did you know that the right vitamins can also be good for your hair, skin and nails specifically? Getting vitamins strictly through diet can be difficult, but taking vitamins and supplements to ...
The Food and Drug Administration (FDA) may soon decide whether to ban the synthetic dye Red No. 3, which gives foods and drinks a bright crimson color. The federal agency has been actively ...
has been the leading permanent hair coloring agent or oxidative hair dye in most of the Western world since its introduction in the 1880s, [1] and it has been a problematic agent almost since its ...