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All You Should Know About Permanent Hair Straightening

Permanent hair straightening treatments are chemicals used on your hair to transform curly or textured hair into flat hair. These treatments can be effective for several months, lasting until there’s new hair growth to replace the treated hair. This durability is the reason it’s known as the permanent hair straightening process.

The term permanent hair straightening refers to processes like thermal straightening, keratin treatments and “perm” straightening. If you have naturally curly or wavy hair but want a change of look or find it difficult to style it, these processes will catch your eye.

Salon treatments and self-treatments at home are both popular options for those who want a permanent hair straightening process. Some people refer to it as chemically straightened hair which is an accurate description as chemical treatments are used.

In this article, you’ll find out everything you need to know about permanent hair straightening. The various treatment processes we will look at have a unique formula. Some treatments come in kits that you can buy and use at home, while others require a salon visit.

Different Types Of Permanent Straightening Treatments

Professional Permanent Hair Straightening

A perm treatment is a treatment that completely changes the structure of the hair follicles. Because of this, perm treatment gives you the option of getting rid of your curls and having straight hair or getting the curly hair that you’ve always wanted. Permanent hair treatment at a salon can take a few hours, and the cost varies depending on the salon you’re visiting and the treatment. Shop around until you find a salon that matches your budget.

Semi-permanent Hair Straightening

Semi-permanent hair straightening procedures result in a change in hair texture for between 3 and 5 months. Often, these procedures may involve a regular visit to the salon. Again, prices for this kind of treatment type can vary.

Thermal Straightening

Japanese thermal straightening, also called acid perm treatment, is similar to conventional permanent treatments. Most people think they are the same as keratin treatments, but that’s not the case.

Thermal straightening may involve spending some hours in the salon. Because of that, it is often more expensive when compared to other treatment procedures. 

Is Permanent Hair Straightening Worth It?

While you’ll never get natural results from any form of hair straightening process, you can expect to get something very close to that. If you’re happy with that, permanent hair straightening is worth the time and money. Don’t expect these results to last forever, though. If you do, you’ll be disappointed.

What Are The Side Effects Of Permanent Hair Straightening?

One common side effect of permanent hair straightening is hair breakage. In essence, the chemical solution has to damage your hair so that it can get its natural curl or lie flat. That means your hair will become difficult to style and take a long time drying until there’s a growth of new, untreated hair in its place. Most people also have concerns about the chemicals used for the process. The chemical formaldehyde, which is contained in all straightening solutions, is carcinogenic. Inhaling its fumes and applying it to your hair can expose you to severe side effects. These include nose and eye irritation, respiratory difficulties, and skin irritation or redness. 

This kind of treatment may also leave you with the smell of chemicals on your hair when you sweat. That’s a sign that cheap materials have been used in your treatment. Make sure you go for the highest-quality treatment your budget will stand. Don’t ruin your look with cheap services!

How Long Does Permanent Hair Straightening Last?

Semi-permanent hair straightening can last 3 to 4 months before the appearance of your natural hair texture. Home straightening kits don’t usually exceed 6 weeks.

Permanent hair straightening done at a salon can last between 4 to 6 months. When your roots start growing in, you’ll need to choose if you want to do the treatment again or wait for your hair to grow out completely.


The concept of permanent hair straightening refers to treatments that will keep your hair straight even after one or two washes. However, your results depend on your hair type, the chemical method used and how quickly it grows beyond that description.

Always remember that permanent doesn’t mean forever. It’s just the duration of the life cycle of your hair. Always consult with your hairstylist about your choices. 

Vinci Hair Clinic specialises in treating different types of hair loss. If you’re experiencing thinning hair due to your hairstyling or other causes, we can help. All it takes is a call to book a free hair consultation, and you can start your journey to healthier and fuller hair!