Altering the hair's protein structure through permanent and demi-permanent dyeing can cause side effects that include weakening of the hair, a lower tolerance for heat styling, reduced hair thickness, and increased follicle roughness.
Unfortunately, hair Color damages your hair. When you dye your hair it lifts the cuticle, altering the hair in a way that will never completely revert back to it's natural virgin state. However, the hair that grows from your scalp will grow out normally so only the hair that has been dyed is affected.
For example, some studies have found an increased risk of certain types of non-Hodgkin lymphoma (but not others) in women who use hair dyes, especially if they began use before 1980 and/or use darker colors. The same types of results have been found in some studies of leukemia risk.
Is dyeing hair harmful? Hair dyes can weaken and damage hair, making it look unhealthy. However, treatments such as conditioners and specially formulated shampoos may help repair hair damage from hair dye. Dyeing the hair with chemical or natural dyes can damage hair.
Avoiding dyes helps maintain a healthier scalp environment. Natural Oils: Hair that is not dyed retains its natural oils better, which can help keep it moisturized and shiny. These oils are essential for hair health and can be stripped away by dyeing.
Comparing Permanent, Semi-Permanent, and Demi-Permanent Hair Dyes. Permanent hair color has the greatest potential for hair damage due to the chemistry involved and should be done most cautiously.
So through our skin or hair follicles, compounds in hair dye could get into our bloodstream. That's potentially worrisome, because a lot of the chemicals in hair dye are known or suspected to be linked to health issues. One common precursor is paraphenylenediamine, or PPD, which is derived from petroleum.
To minimize hair damage, wait at least 8-10 weeks between dye jobs. If you're using permanent hair dye on damaged hair, try to avoid repeating full-head colorings as much as possible. Rather do touch-ups or fills every few months to maintain your color.
Box dyes often contain strong chemicals that can over-processed hair, making it dry and brittle. These chemicals can react unpredictably with other hair treatments, causing damage.
Khadi Natural Hair Colour
Known as a great plant-based natural hair dye. Khadi natural hair colour is renowned for aloe vera, and chamomile being infused into the product for moisturizing. This is great for sensitive scalps, or dandruff. Henna will colour your hair, while moisturizers soothe your scalp.
But what happens when you dye your hair too much? The chemicals in the hair dye are going to cause irreversible damage to your hair. Ammonia opens the hair cuticle (the protective layer), but if this is repeated enough times, it will weaken the structure of your hair.
Consumers are also at risk: Frequent use of hair dye is associated with a higher risk of several cancers, including uterine and breast cancer, as well as the formation of ovarian tumors.
It contains PPD (highly toxic component) and a mixture of other chemicals that can damage the respiratory, muscular, blood, renal and hepatic systems.
What hair dye brands should I avoid? Brands that frequently use harmful chemicals include Clairol Nice'N Easy, Garnier Nutrisse, Revlon Colorsilk, and L'Oreal Preference. These products often contain ingredients like ammonia and PPD, which are associated with health risks.
P-Phenylenediamine (PPD)
PPD, or p-phenylenediamine, is widely used as a coloring agent in many hair dyes. This toxic hair dye chemical is especially common in darker shades. However, PPD can cause irritation to the skin and eyes and may also trigger asthma symptoms.
How often should I dye my hair to cover grey hair? This depends on how quickly your hair grows, but often is between 4-8 weeks. If you're only just starting to grey, it may not be time to begin permanently colouring your hair.
And your hair might feel healthier
While hair dyes and techniques have come a long way since their follicle-frying beginnings, they do still leave some damage. Taking a hiatus from color will help your hair return to its previous state--especially as dyed ends get chopped off.