Can I bleach hair after a keratin treatment?

Do not bleach hair after a keratin treatment. You must wait at least 3 months after applying the treatment to your hair. You will have to repair the damage done to your hair by bleaching it if you do this too soon after keratin.

It is not recommended to use hair bleach after keratin treatment. This is because the strong chemicals in bleach may cause your hair to become dry. Also, it could potentially damage the keratin that you have added to make your hair healthy.

The keratin treatment needs to “breathe.” Keratin treatments need time to set in and become permanent before they can be changed by bleaching. You’ll probably lose the effects of your keratin treatment.

Keep reading if you want to learn more about keratin treatments and what you can or can’t do afterwards.

Can you dye your hair after a keratin treatment?

After a keratin treatment, it’s best to get your hair dyed before the treatment or wait until a month after the treatment to dye your hair.


  • It’s possible that using dye on your hair after a keratin treatment could damage it.
  • If you use a hot tool on your recently keratin-treated hair, it could compromise the results of your treatment.
  • Keratin treatments can dry out your hair, so it’s not advised to dye it until it is fully hydrated again.

Can you do root-touch ups?

It would be best if you waited even for root-touch ups. I know this is not convenient for many women, but this is why keratin treatments are hard work. 

Keratin treatment works by coating the hair follicle with a layer of protein. It”glues” any broken hair strands together to make the hair appear smoother and more manageable.

To get the soothing effects of a keratin treatment, your stylist needs to take your hair to a very high temperature with a flat iron.

In this case, you will want to go get your roots touched up at least five weeks after the treatment. Use the conditioner that came with your keratin treatment kit (or similar sulfate-free formula) on your roots once or twice per week.

You can dye your hair after a keratin treatment, but it’s not recommended. Don’t use ammonia-based hair dye if you decide to dye your hair.

Can I use a toner after keratin treatment?

If you’re curious to know if you can use toner after a keratin treatment, the answer is yes, but you must follow the directions carefully.

Toners are used to neutralize the pigments from your hair. They’re meant to be temporary or semi-permanent and are easy to use but only if you do it the right way.

Here are some essential tips to keep in mind regarding toning after a keratin treatment:

  • Don’t wash your hair for 3 days after getting a keratin treatment.
  • Use a colour-safe shampoo and conditioner when washing your hair.
  • Apply the toner with a brush and work it through your hair.
  • Leave it on for 10-15 minutes before rinsing out.
  • Let your hair air dry. Do not blow-dry or flat iron until at least 24 hours has passed since you used the toner on your strands.

You can use a toner after a keratin treatment, but you should limit the use to 1-2 times a week.

Can I colour my hair before keratin treatment?

Yes, you can colour your hair before a keratin treatment, and it is a better option than colouring it after you do it. Try to use ammonia-free products and let the colour sit for at least 24 hours before your keratin treatment.

In fact, your colour will last much longer after you get your keratin treatment done. This is because the keratin treatment will lock in the moisture in the cuticles. 

When the stylist applies the keratin formula, the molecules of the formula will penetrate deeper into your hair and make it stronger.

If you want to colour your hair immediately after getting a keratin treatment, then this may not be possible. However, it is possible to have the best of both worlds by getting both treatments simultaneously.

Some salons offer this option, but you should ask about it first.

Pro tip: Make sure to go to a professional colourist who understands how to work with keratin treatments.

Can I do highlights after keratin treatment?

You can do highlights after a keratin treatment, but it’s not advisable. Highlighting hair with bleach can cause damage and dryness, which a keratin treatment may exacerbate.


Highlights are done by applying bleach to hair, which is an aggressive process. Colouring your hair while keratin therapy is still in effect can weaken the protein bonds in the treated strands.

Our advice is to do highlights before your keratin treatment. Do that to avoid over-processed hair or wait at least 14 days after getting the keratin treatment.

If you go to a salon for highlights, bring a sample of whatever keratin product you used for your treatment. Then, let your stylist know what kind of results you’re looking for.

Conclusion: Can I bleach hair after a keratin treatment?

The general answer on whether you can bleach your hair after a keratin treatment is no, in most cases. Although you might be able to get away with doing a little extra colour, bleaching will affect the quality of your hair. This is because it is still fragile from the process.

The best thing to do would be to wait for your hair to grow out naturally first before trying anything major with it. This goes both for colouring and highlights.

What if you have already bleached your hair?

It is important to keep bleached hair well-conditioned. This is because bleaching makes hair fragile and susceptible to damage.

We hope this blog post gives you the information you need when it comes to bleaching your hair and the dos and don’ts. Have you ever had keratin on your hair? Let us know everything about your experience in the comments.

Leave a Comment