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 ...

But thanks to a handful of new innovations in home hair-dye, you can switch up your shade ... ll get a prescriptive guide to the shades and products you need in your life. Genius.

Historically, box hair dye also tends to use more aggressive ... where you’ll find more professional products and can glean some expert advice from the store clerk.

As far as maintenance goes, reach for products that will ... bleaching and permanent hair dyeing to a professional. If you're ...

The global professional hair care products market is on a significant growth trajectory, with a projected value of USD 23,466 ...

Changing up the color of your hair is a surefire way to feel like a new version of yourself. However, if you constantly dye your hair ... Strengthening Additive, a professional-only treatment ...

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 ...