Is it harmful to dye your hair? Everything You Want to Know About

Categorized as Haircare, Beauty
dye your hair
Photo by Maksim Chernishev
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Our hair colour nightmares are all too familiar: breakage, dryness, and a host of other ills. What information is necessary regarding hair colouring and the damage it might cause?

Roughly 95 percent of a dry hair strand is made up of proteins. These proteins behave like shingles, providing a protective covering for the strand underneath them, protecting it from ills such as:

  • moisture
  • heat
  • solar UV radiation

The application of permanent or semi-permanent hair colouring or bleach causes the chemical reaction to raise these proteins, allowing chemicals to permeate the strand of the hair. Because of the hair colour, the chemical makeup of the hair is altered there. It ends up a shift in colour.

The long-term dyeing of hair is distinct from the temporary or short-term dyeing of hair. Color often sits on the surface of your hair after a temporary dye, but it seldom goes beyond the first layer (though they can still damage your hair). For instance, classic hair dye options like Kool-Aid, carrot juice, and coffee are all legitimate.

Perm and semi-permanent hair colouring have the potential to produce several adverse effects, including:

  • hair loss.
  • decreased hair resistance to heat styling
  • thinner hair
  • higher follicle coarseness

In light of this, the hair colouring procedure naturally alters the hair. The time span of this impact depends on your hair type.

Dyeing your hair if it is already fragile or thin might worsen the condition. The colour may not dissolve in thick hair as quickly, and the application may take longer.

Which chemicals should I be concerned about? A list of hair colouring chemicals is as follows:

Bleach

Hair colour may be changed by bleaching it. A research in 2020 showed that bleaching might potentially harm:

  • hair toughness
  • moisture
  • hair’s heat resistance

Whether bleach causes harm to your hair depends on the pH of your hair and the pH of your surroundings.

Dyeing one’s hair is often done using hydrogen peroxide, which is found in hair colour. Hydrogen peroxide is a compound that oxidises other substances. As a result, it causes hair colour to activate, although the oxidation process does end up damaging the hair.

Henna

A natural, semipermanent hair colour, Henna is the best choice for a vibrant redhead. Naturalness does not imply that the damage will be less severe. A 2019 study revealed that henna dyes may cause your hair to be damaged, which may lead to frizzy, brittle hair. For extended periods of time, the henna dye’s effects are comparable to hair whitening. If you are sensitive to any of the compounds or components in henna ink, contact dermatitis and skin irritation may result from using henna.

P-Phenylenediamine

A frequent ingredient in hair colours requiring an oxidant like hydrogen peroxide is phenylenediamine (PPD). Some individuals claim that PPD hair dyes provide a higher likelihood of allergic responses.

Which is more preferable, light or dark dye?

The more lightening you use on your hair, the more damage it will do.

Research conducted in 2019 utilised a microscope to investigate bleaching levels and discovered that hair was harmed the most when it was treated for a long time to transform black hair to light hair. Because of this, many hairdressers do not advise bleaching hair in one sitting. Although it may seem that switching from lighter to darker hair would be more manageable, you are still modifying the hair’s structure. Darker-colored hair should also be taken care of.

What should I do to fix damaged hair?

An increased risk of hair damage is possible if the hair has been previously damaged through extreme heat styling or harsh dyes.

Here are some suggestions on how to keep your hair in tip-top shape:

  • Put on hair colour that contains conditioners. Dyes’ conditioners reduce the amount of hair damage. Hydrolyzed silk proteins are one example.
  • Keep heat styling to a minimum. Hair can be further damaged with heat styling. Only use hair styling tools such as curling irons sparingly.
  • hair care appliances
  • curling-iron tools
  • flat straighteners
  • Either spray or lotion can be used to apply thermal heat protectant. Use these products on your hair before applying heat to it.
  • It’s best to leave a couple of weeks between colouring your hair. Appointments for hair colouring are less harmful when they are not made as frequently.
  • Wash your hair with conditioners and hydrating shampoos. These products assist in keeping moisture in the hair after dying. Shampoos containing a lot of detergent typically produce more harmful lather.
  • Choose hair care products that are tinted in a certain hue. These products were created to protect coloured hair.
  • Dye your hair to be as near to your natural colour as possible. This should reduce damage to some extent.

Hair dye allergies

An extremely rare type of allergic response might occur in cases of excessive usage of hair colour. The appearance of puffy lips and watery eyes might serve as an early warning of allergic responses. If you start to have trouble breathing after using hair colour, get immediate medical care. To test hair dye prior to applying it to the entire head, apply it to a tiny section of hair first. You should bear in mind that it is not the case that all persons who suffer from a hair colour allergy have a reaction to a patch test.


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