Keratin Hair Treatment Advantages and Disadvantages

long straight smooth hair

Keratin hair treatment is a popular hair straightening and smoothening method that has been gaining popularity over the years. The process involves coating the hair strands with a special protein, keratin, and then sealing it in with heat. This treatment can last up to six months, making it a popular choice for those looking for long-lasting results. While the keratin hair treatment has its advantages, it also has some disadvantages. This article explores the advantages and disadvantages of a keratin hair treatment.

Advantages of Keratin Hair Treatment

Long-lasting results

One of the main advantages of keratin hair treatment is its long-lasting results. The treatment can last up to six months, making it a popular choice for those who want to maintain their hair’s smoothness and straightness for an extended period.

Smooth and shiny hair

The keratin hair treatment can leave your hair looking smooth and shiny. The keratin protein fills in any gaps or holes in your hair, making it smoother and shinier.

Reduces frizz

The keratin hair treatment can help to reduce frizz in your hair. The treatment works by coating the hair strands with a protective layer of keratin protein, which helps to protect the hair from humidity and other environmental factors that can cause frizz.

Easier to style

Keratin-treated hair is easier to style as it is smoother and more manageable. This means that you can spend less time on your hair styling routine and still achieve great results.

Suitable for all hair types

The keratin hair treatment is suitable for all hair types, including curly, wavy, and straight hair. It can be customized to suit individual hair types and textures, making it a versatile treatment option.

Disadvantages of Keratin Hair Treatment


Keratin hair treatment can be expensive, especially when done in a salon. The cost can vary depending on the salon and the length and thickness of your hair.

Formaldehyde exposure

One of the major concerns with keratin hair treatment is exposure to formaldehyde. Formaldehyde is a chemical used to bind the keratin to the hair strands. It can cause eye and nose irritation, breathing difficulties, and even cancer in high concentrations.


The keratin hair treatment can be time-consuming, taking up to three hours in some cases. This can be a disadvantage for those who do not have the time to spare.

Temporary hair loss

Some people may experience temporary hair loss after a keratin hair treatment. This is because the treatment can weaken the hair strands, leading to breakage and hair loss.

Restrictions on hair washing and styling

After a keratin hair treatment, you may be restricted from washing or styling your hair for a certain period, usually up to three days. This can be inconvenient for those who need to wash and style their hair frequently.

The keratin hair treatment has both advantages and disadvantages. It can leave your hair looking smooth, shiny, and manageable for up to six months, making it a popular choice for those looking for long-lasting results. However, the treatment can be expensive, time-consuming, and can expose you to formaldehyde, a potentially harmful chemical. It is essential to weigh the pros and cons carefully before deciding on a keratin hair treatment. If you decide to go ahead with the treatment, make sure to choose a reputable salon and follow the after-care instructions carefully.