Keratin Treatment vs Chemical Straightening: What’s the difference?

straightening treatments

Do you have unmanageable, frizzy hair?

Sick of spending all of your time to style it, just to resort putting it up in a bun anyway? These days no one really has the time to spend hours styling their hair, just for it to be ruined as soon as there’s the slightest hint of moisture in the air.

Fortunately, we now have solutions for this! But which option is the best for you; Keratin Treatment or Chemical Straightening? 

A lot of people tend to get confused by these two services and don’t know which the best for their hair. In this article we’re going to be answering some of your key questions concerning this:

  • What are the differences between Keratin Treatments and Chemical Straightening?
  • Pros & Cons 
  • How to decided what is right for you 
  • What services we offer and the products we use at Hair Scene – Hair & Beauty 
The differences between Keratin Treatments and Chemical Straightening

The biggest differences between these two services are mostly the types of products used, how the service is performed and the end result. 

Chemical Straightening
  • Uses strong chemicals to break and reform the bonds in the hair 
  • Gives a permanent and more “straight” result 
  • Will have a regrowth of curly/wavy hair eventually 
  • Colour services to be done at least a 2 weeks after the straightening
  • Takes about 3-6 hours for the complete service 
chemical straightening
Keratin Treatment
  • Uses hydrolyzed keratin to rebuild, heal and eliminate frizzy hair
  • Does not straighten the hair
  • Smooths and softens curls
  • Lasts up to 3 months
  • Colour services to be done at least 7 days after the treatment
  • Takes about 2-4 hours for the complete service 
keratin treatment
Chemical Straightening

Gives sleek, very straight result
Gives a permanent, guaranteed result 
Doesn’t affect colour
Works for stronger curl formations or just a wave 


Uses harsh chemicals that can damaged and weaken the hair 
Will have to deal with regrowth eventually
Is an expensive service 
Can’t be used on Bleached hair
Service takes a long time 

Keratin Smoothing Treatment

Controls the fluffy curly hair
Can be used on extremely dry blonde hair
Retains some volume and movement
Can still curl hair with irons
Makes the hair feel amazing
Gently washes out 


Must wait 72 hours after treatment before washing hair 
Lasts for 3 months (some get longer)
Is an expensive service 
Service takes a long time
Must use sulphate free shampoo and conditioner
Does not straighten the hair but relaxes hair