Keratin Treatments: What to Expect Before, During, and After

Keratin Treatments: What to Expect Before, During, and After

Keratin treatments can completely transform the look and feel of your hair by smoothing frizz, adding shine, and cutting down styling time.

To get the best possible results, it helps to know what to expect at every stage of the process.

Below, the experts at our professional hair salon provide a complete guide to your keratin treatment journey, including:

  • How long the appointment takes
  • When you can wash your hair
  • How long the results last
How to Prepare Before Your Appointment

How to Prepare Before Your Appointment

  1. Wash with a clarifying shampoo the night before to remove buildup.
  2. Arrive with hair free of heavy oils, sprays, or dry shampoo.
  3. Set aside two to four hours depending on your hair’s:
    • Length
    • Thickness
    • The type of keratin system being used

What Should You NOT Do Before Your Keratin Treatment?

  • DO NOT color or chemically treat your hair immediately before the appointment.
  • DO NOT use heavy leave-in conditioners or deep treatments in the days leading up to your visit.
  • DO NOT schedule strenuous workouts right before, as sweat can interfere with prep.
  • DO NOT arrive with tangled or matted hair; this may slow the process.
  • DO NOT plan to rush through the service; keratin treatments need time for best results.

What to Expect During Your Keratin Treatment

Your stylist will:

  1. Consult with you to understand your hair’s needs.
  2. Shampoo your hair thoroughly.
  3. Apply the keratin formula section by section. 
  4. Blow-dry and flat-iron it to activate the smoothing benefits.

How Long Does It Take for a Keratin Treatment to Work?

Most clients notice an immediate improvement in shine and manageability before leaving the salon chair.

After Your Keratin Treatment: The Do’s & Don’ts

  • DO sleep on a silk or satin pillowcase to prevent friction and frizz.
  • DO brush gently with a wide-tooth comb or soft-bristle brush.
  • DO protect your hair from chlorine and saltwater with a swim cap or leave-in barrier.
  • DO apply lightweight, keratin-safe oils to keep ends hydrated.
  • DO schedule touch-ups before a big event if you want maximum smoothness.
  • DO read “How to Care for Your Hair After a Keratin Treatment Service.” 
  • DON’T use styling tools set at excessively high heat.
  • DON’T expose your hair to prolonged direct sun without UV protection.
  • DON’T overuse dry shampoo, which can create buildup.
  • DON’T let sweat sit in your hair for long periods; rinse or gently cleanse if needed.
  • DON’T wait too long between trims, since split ends can travel up the hair shaft.

Do You Really Need to Wait 3 Days to Wash Your Hair?

Yes, most keratin systems require you to wait at least 48 hours, and up to 72 hours, before washing your hair. To prevent unwanted creases during this window, avoid:

  • Using clips
  • Tucking your hair behind your ears
  • Putting it in a ponytail

Some newer keratin systems allow earlier washing, but no matter what, the first few days after your appointment are crucial for locking in results. Your stylist will advise you based on the exact product used.

Washing and Products: Keep It Gentle

Once the waiting period is over, use a sulfate-free shampoo and conditioner designed for keratin-treated hair. These formulas prevent stripping the treatment from your strands. Regular moisturizing masks or lightweight leave-in conditioners can also extend softness and shine.

What to Expect Over 3–5 Months

Keratin treatment services aren’t permanent, but they do provide long-lasting improvements in smoothness and frizz control. Results typically last three to five months, depending on your hair type, lifestyle, and the keratin system applied.

Those who wash their hair less frequently and use gentle products often enjoy the longest results. Over time, your natural texture gradually returns, letting you know when it’s time to schedule your next treatment.

Check-Ins & Maintenance at a Professional Hair Salon

Your stylist can recommend when to return for touch-ups based on how your hair responds. Many clients schedule keratin treatments two to three times per year. Routine trims, professional products, and salon visits help maintain hair health while extending the life of your treatment.

Maintain Sleek, Shiny Hair with Professional Keratin Services

Maintain Sleek, Shiny Hair with Professional Keratin Services

A keratin treatment timeline gives you a clear idea of what to expect from start to finish. By preparing properly, following aftercare instructions, and working with a skilled stylist, you can enjoy smooth, glossy, and manageable hair for months at a time.


At Hair Blush Salon, we offer personalized keratin services that are tailored to your hair type and lifestyle so you get beautiful results that last. To achieve greater control and simpler styling, book an appointment at our professional hair salon today!