If you’re thinking about getting a smoothing or straightening treatment, one of the first things you’ll want to know is:

“How long will it actually last?”

Great question — and the answer depends on a few simple factors like your hair type, the treatment formula, and the way you care for it at home. Here’s your easy, realistic guide to understanding how long your results will last and how to make the most of them.


1. Most Smoothing Treatments Last Between 3–5 Months


This is the average for gentle, modern smoothing systems used in professional salons.


In general:

  • Light smoothing treatments: 2–3 months

  • Standard keratin treatments: 3–5 months

  • Stronger straightening systems: up to 6 months
    (These are used selectively depending on hair condition.)


How long yours lasts depends on your lifestyle and hair routine — and we’ll always guide you to the right option for your hair type.


2. Your Hair Type Plays a Big Role

Every hair type responds differently.


If you have fine or slightly wavy hair:

Your smoothing results will usually last longer, sometimes up to 5 months.


If you have thick, coarse, curly or frizzy hair:

Expect around 3–4 months, depending on the formula.


If your hair is very porous or previously damaged:

You may need a top‑up sooner, because porous hair allows the treatment to fade faster.


We’ll assess this during your consultation to set real, personalised expectations.


3. Your Shampoo Makes a HUGE Difference


This is non‑negotiable.
To keep your smoothing treatment lasting as long as possible:


Use:

✔ Sulphate‑free shampoo
✔ Gentle, moisturising formulas
✔ Keratin‑safe products


Avoid:

✘ Clarifying shampoos
✘ Anti‑dandruff shampoos
✘ Anything labelled “deep cleanse”
✘ Sulphates (they strip your treatment quickly)


The wrong shampoo can cut your treatment in half — literally.


4. Washing Your Hair Less Often = Longer‑Lasting Smoothness


Every wash slowly reduces the keratin or smoothing effects.


For the longest results:

  • Wash 2–3 times a week max

  • Use dry shampoo between washes

  • Keep hair off your face when working out

  • Rinse with water after swimming to remove chlorine or salt


This alone can add an extra month of longevity.


5. Heat Styling (Done Properly!) Helps Maintain Smoothness


Using heat isn’t bad after a smoothing treatment — when done correctly.


Do:

  • Use a heat protectant every single time

  • Blow‑dry on medium heat to “reactivate” smoothness

  • Use straighteners at a moderate temperature if needed


Avoid:

  • Extremely high heat

  • Repeated passes on the same section

  • Blow‑drying with no heat protection (ever!)


Heat helps seal your treatment — but must be used kindly.


6. Your Lifestyle and Environment Matter


Humidity, swimming, and daily habits affect longevity.


Your treatment may fade faster if you:

  • Swim regularly without protecting your hair

  • Live or travel in high humidity

  • Keep your hair tied up when it’s wet

  • Use very hot showers

  • Sweat heavily without rinsing afterwards


A few small tweaks can keep your hair smooth for much longer — and we’ll guide you based on your routine.


7. A Mini Top‑Up Between Sessions Can Extend Results


A gentle booster treatment around the 8–10 week mark can keep your hair smooth, shiny and easy to manage until your next full appointment.


This is especially helpful for:

  • Curly or coarse hair

  • Very frizzy hair

  • Damaged or porous ends

  • Clients wanting long‑lasting smoothness with minimal styling

✨ Want to know how long a smoothing treatment will last on your hair?

Book a consultation or appointment and we’ll guide you to the perfect smoothing system, explain exactly how long it will last for your hair type, and give you a personalised aftercare plan to keep it smooth for months.

 

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