Left Continue shopping
Your Order

You have no items in your cart

You might like


Keratin Treatment Vs Japanese Hair Straightening | Top Differences

Keratin treatment and Japanese hair straightening are two of the most common smoothing  treatments in the hair industry. However, while they produce similar results, the process these  treatments go through is fundamentally different. Read on in this blog from BKT Beauty to find  out the difference between these two treatments and which is right for you. 

What Is Keratin Treatment? 

Keratin treatments which are also known as Brazilian blowouts are a type of smoothing  treatment that reduces frizz, protects against damage, and creates silky, shiny hair with the use  of the protein keratin which already naturally exists in your hair and nails.  

This protein breaks down in response to damage so by reintroducing this protein to your hair,  you reduce damage and improve the texture and health of your hair by strengthening the hair  follicle. Since keratin smooths down your hair strands, it reduces frizz and flyaways and may  relax your curl pattern.  

Keratin treatment is not necessarily a straightening treatment, but it often makes it easier to get  sleek straight hair and many clients with slightly wavy hair may experience much straighter hair  after keratin treatment.  

This treatment lasts for 3 to 6 months and you will need to use sulfate-free shampoos  afterwards. While traditionally you would need to avoid getting your hair wet for 72 hours, many  keratin treatments nowadays can bypass this rule. 

What Is Japanese Hair Straightening? 

Japanese hair straightening is a treatment that straightens the hair by altering the  natural hair bond. This is also called thermal reconditioning. A specially formulated solution is  applied to the hair that breaks down the bonds to straighten it. This solution is then rinsed out.  

Know the Differences 

Keratin treatment does not alter the hair’s internal bond so you can always go back to your  natural hair texture once it grows out. It’s performed by infusing the layer of keratin into your hair  with the use of a flat iron.  

The exact application process is slightly different at various salons but it typically involves  washing and drying the hair first and then sectioning the hair and applying the keratin treatment  with a fine tooth comb.  

After letting the solution sit, the hair is blow-dried and then flat ironed. Hair is smooth, silky, and  straight after keratin treatment because the keratin is sitting on top of the cuticle and smoothing  it out. However, it hasn’t changed the actual structure of the hair bonds.  

Japanese straightening treatments, on the other hand, are considered chemical straightening.  This will fundamentally change the bond of your hair.  Japanese Hair Straightening is more invasive and weak hair always impose an risk of some serious damage. You cannot wash your hair for 3 days after Japanese straightening treatment.

Keratin Treatment for All Hair types

To be suitable for Japanese straightening, your hair should be in good condition. Weak and brittle hair are also not a good fit for Japanese straightening treatment. So, hair that has recently undergone another chemical treatment  may not be able to withstand strong chemicals and high heat without serious damage.  Bleached, relaxed, or permanently waved hair is not suitable for Japanese straightening.  

When it comes to hair texture, Japanese straightening best suits wavy and moderately curly  hair. People with tightly curly hair are not good candidates because the demarcation line  between the straightened hair and the newly grown roots can be a problem.  

Unlike thermal bonding, a keratin treatment can be applied to chemically treated hair. Keratin  treatment can even temporarily fix damaged hair and make it look healthier. This treatment will  most suit women who have problems with frizz or excessive hair volume, so it’s worth  considering if you live in a high-humidity area. Finally, a keratin treatment is a good choice for  very curly hair as it can loosen the curls and make them frizz-free and shiny.


Keratin treatments only temporarily alter the cuticle because the protein is laying on top of the  hair rather than changing the hair’s internal bond. As a result, a keratin treatment is more  suitable for clients who have colour-treated, bleached, or relaxed hair.  

When it comes to Japanese hair straightening, it’s important to get a consultation and speak to  a hair specialist to find out if you’re considered a good candidate. Good candidates are people  with wavy or moderately curly hair that hasn't been colour-treated or relaxed.  

Book a Keratin Treatment at BKT Beauty Today 

While Japanese hair straightening may have a few advantages, keratin treatments are suitable for more  hair types and can even repair hair damage. Contact us at BKT Beauty to book a consultation for a keratin treatment or nanoplasty today.