How long the hair should not be washed after the treatment?

Author: Ms. Adah Witting  |  Last update: Tuesday, January 27, 2026

If you wash your locks right after the treatment, you will just wash away the fresh protective layer and spoil the whole treatment. That's why hair wash after keratin treatment shouldn't be performed earlier then 3 days after the procedure.

When can I wash my hair after treatment?

CONCLUSION. 24-48 hours after receiving a keratin treatment in a salon, you can wash your hair. However, it's preferable to adhere to the directions provided with the procedure if you underwent an at-home keratin treatment. Generally speaking, it's advised to wait at least 48 hours before washing your hair.

Can I wash my hair after 2 days of straightening?

After straightening your hair, it's generally recommended to wait at least 72 hours (3 days) before washing it. This allows the hair to fully set and helps maintain the straightened style longer.

How long should I wait to wash my hair after getting it professionally done?

Most hairstylists recommend waiting between 24/48 hours ( 1/2 days) washing your hair after a color/toner service. If you can wait until tomorrow it would be better.

Can I wash my hair 24 hours after hair Botox?

One of the biggest mistakes after getting hair botox is washing your hair too soon. It's essential to wait at least 24-48 hours before your first wash to let the treatment fully set. Washing too early can strip away the benefits, leaving your hair less smooth and shiny.

Does frequent hair wash increase hairfall?

How to stop hair loss after hair botox treatment?

  1. Use sulfate-free shampoo. Opt for a sulfate-free shampoo to gently cleanse your hair without stripping away the nourishment provided by the hair botox treatment.
  2. Regular moisturizing masks. ...
  3. Avoid heat styling. ...
  4. Protect hair from Sun exposure. ...
  5. Regular trims.

How long after protein treatment can I wash my hair?

As we said before, washing hair is prohibited for the first 72 hours after protein treatment. Washing hair during this period may cause the protein to fade from the surface of the hair, which will reduce the effectiveness of the treatment and weaken its results.

Can I wash my hair 2 days after getting it done?

Whether you've gone lighter or darker, it's totally fine (in fact, it's encouraged) to wait at least 48 hours before washing your hair after your coloring appointment. Doing so gives your new hue more time to bond with your strands and can help your dye job last longer and appear more vibrant.

What is the longest you should wait to wash your hair?

According to dermatologists, most people shouldn't be shampooing daily. So, depending on your hair type and the state of your scalp, you may be fine to wait a whole week or (gasp) longer before sudsing up again.

What happens if I wash my hair 24 hours after highlights?

Doing so can cause the color to fade prematurely as the cuticles may not have fully closed yet. It's best to wait at least 48 hours.

How to take care of hair after treatment?

Hair care tips to follow after a hair treatment
  1. Avoid using more chemicals. The general thumbrule is to select the sort of shampoo and conditioner that is appropriate for your hair concern. ...
  2. 2 Don't use too many heating tools. ...
  3. Avoid washing hair in hot water. ...
  4. Be gentle with your hair. ...
  5. Deep nourish your hair.

Can I wash my hair 24 hours after a Brazilian blowout?

Right after getting your Brazilian Blowout, you should stay at least three days without washing your hair.

How long does it take for hair to go back to normal after straightening?

Well, it depends on the straightening you have done. If you have done temporary straightening using a flat iron, the straight hair will last 2-5 days or until your next wash. If you visited a permanent hair straightening salon, the straight hair will last 10-11 months or even a year, with proper maintenance.

Can I wash my hair after 48 hours of straightening?

How many days must I wait with washing my hair after this treatment? You should refrain from washing your hair for 2 days (48 hours). The chemicals that are used in the straightening process, will still be active for 48 hours.

When should I not wash my hair?

You should only go a week without washing your hair if you have dry, thick, and/or coily hair—not because you can't stretch your wash-day out even longer, but because you really shouldn't if you're trying to prevent breakage, dryness, and irritation.

How long should hair treatment stay on?

The directions for most hair masks say to leave it in for 3 to 5 minutes on damp hair, but there are exceptions. Damaged or severely dehydrated hair may need up to 15 or 20 minutes for best results.

How long can hair stay unwashed?

According to stylist Rosi Fernandez, director of Ananda Ferdi it is not advisable to go for more than a week without washing hair, as “follicles become clogged and do not get oxygenated,” she explains.

Why does my scalp itch after not washing hair for 2 days?

Infrequent hair washing, a reaction to a hair product, dandruff, and seborrheic dermatitis are some of the most common reasons why your scalp might be itchy. Other causes include head lice, psoriasis, nerve problems, ringworm, and scabies. Your treatment will depend on what's causing the itching.

How to make hair grow quicker?

9 WAYS TO MAKE YOUR HAIR GROW FASTER
  1. Trim your hair. ...
  2. Eat protein-rich foods. ...
  3. Take a hair-boosting supplement. ...
  4. Use a hair growth serum. ...
  5. Use a weekly hair mask. ...
  6. Take care after washing your hair. ...
  7. Always use heat protection. ...
  8. Protect your hair from the elements.

How long to wait to wash hair after color treatment?

Put simply, your client should wait as long as they can before washing their freshly colored hair, as this allows the cuticles to fully close up and seal in their dream shade. For some, this could be 48 hours, while others may be able to hold on for up to one week.

How long should you wait between hair washes?

Finding the right balance can be tricky. Generally, if your hair isn't greasy or dry, you should cleanse it every two to three days, King recommends.

Why does my hair look better 2 days after washing it?

Don't be surprised if you notice that your second day hair looks and feels better than right after washing it. On the second day, your hair has had time to fully dry, your hair's natural oils have returned, and your hair's natural shape is restored.

What happens if you leave a protein treatment in your hair too long?

One major sign is a change in the look and texture of your hair as it may start to look dry, dull, and brittle. Your hair may feel more coarse and struggle to hold a curl when dealing with protein overload. Too much protein may also cause split ends and breakage, leaving hair to shed more.

Which shampoo is best after protein treatment?

Oplus Nourishing and Moisturizing Shampoo with Natural Oils is the best shampoo after protein, because it has many unique properties that make it an ideal choice for hair care, especially after protein treatment.

How do you sleep after protein hair treatment?

How to Sleep After Hair Keratin Treatment? To ensure your keratin treatment remains effective, let your hair fall loose while you sleep. Use a silk or satin pillowcase to minimize friction and prevent creases. Avoid tying or wrapping your hair, and sleep on your back to maintain straightness.

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