A hair dye allergy typically occurs due to chemicals in the dye. The most common cause of these allergic reactions is para-phenylenediamine (PPD). Immediate treatment is necessary. PPD is found in ...

When hair dyes first came out, the main ingredient used in coal-tar dyes caused allergic reactions in some people. Most hair dyes now are made from petroleum sources. But the FDA still considers ...

Chemicals in hair dyes may cause allergies for some people. Around 38% of people who color their hair report having an allergic reaction to hair dye. The most common allergic reaction to hair dye ...

This chemical reaction creates the final dye molecules that penetrate deep into your hair and permanently change its color. Darker shades of hair dyes often contain more of these ingredients ...

"Always do a patch test—even if you have a trusted brand." She added: "The scariest thing about hair dye reactions is how quickly they can escalate. What starts out as mild irritation can ...

Hair dye works through a series of different chemical reactions. The most common ingredients in hair dye include: The chemical compounds used in hair dye don’t last forever. They may break down ...

Some people may be allergic to a component in hair dye, such as PPD or a preservative ... and some people even experience reactions on the neck, forehead, or other parts of the face that come ...

Every item on this page was chosen by an ELLE editor. We may earn commission on some of the items you choose to buy. While there are natural options like henna or even a few interesting vegetable ...

One user writes: "I'm allergic to most hair dye products. I have used this product for about 2 months now and have had no adverse reactions yet. The coloring is very natural. I cut my hair very ...

As Parks stated, it’s the absolute best on virgin hair, and since it is a permanent dye, it’s recommended ... those are what truly cause chemical reactions,” she said.

Coloring your hair can be a big commitment ... and mineral buildup could interfere with the process and cause a chemical reaction,” explains Yusef. “This can end up causing uneven color ...