How long should you wait to wash your hair after a smoothing treatment?

Author: Miller Ondricka I  |  Last update: Thursday, June 5, 2025

You should wait 48 to 72 hours before washing your hair if you perform the treatment at home. Most likely, you didn't utilize high-temperature professional styling equipment to seal the keratin in more quickly.

When can I wash my hair after a smoothing treatment?

It's generally recommended to wait at least 3 to 4 days after a hair smoothening treatment before washing your hair. This allows the treatment to fully set and bond with your hair. Washing your hair too soon can reduce the effectiveness of the smoothening process and may lead to less desirable results.

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.

What happens if I wash my hair after smoothening?

Using a shampoo or conditioner containing sulfate after hair smoothening can wash away the chemicals and effectiveness of the treatment. So, shampoo and condition your hair every third day and gently rinse it off with cold water.

What if I accidentally washed my hair after keratin treatment?

The chemicals need more time to fully set, usually around 48 to 72 hours. Since you washed it early, your curls might end up looser, frizzier, or not last as long as they should. That said, it's not guaranteed to be completely ruined, just keep an eye on how your hair reacts.

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Can you wash your hair after 24 hours of keratin treatment?

Avoid washing your hair for at least 24 to 72 hours, depending on the type of treatment you used. This allows the keratin to fully bond with your hair. In the first few days, try to keep your hair dry and avoid activities like swimming or excessive sweating.

Does water ruin keratin treatment?

After investing in a keratin treatment, such as the Kera Mane Keratin Hair Treatment, protecting your hair from water damage, especially in the first few days post-treatment, is crucial. Water can significantly impact the longevity and effectiveness of your treatment by causing the keratin to wash out prematurely.

What not to do after smoothening?

Your hair is most susceptible to lasting changes in shape just after your smoothing treatment, (for the 2 treatments we offer with a 48 or 72 hour downtime), which means it is important to avoid putting your hair in a ponytail, tucking it behind your ears, or doing anything else to cause it to bend and crease during ...

Does keratin strengthen hair?

Keratin is a structural protein, and therefore, it can strengthen hair and reduce breakage. Some people say that treatments help their hair grow faster, as the ends are not splitting or breaking.

What are the disadvantages of hair smoothening?

Hair smoothening can cause increased hair fall. Applying chemicals directly to your scalp can cause the weakening of your hair follicles which will ultimately result in the detaching of your hair from your scalp. It can be a sign of deteriorating hair health as well. This procedure can also cause skin damage.

Why is my hair so greasy after keratin treatment?

Why It Happens: After a keratin treatment, your hair becomes smoother and straighter, which can affect how oil travels down the hair shaft. In curly or wavy hair, natural oils from the scalp may take longer to reach the ends, but with straightened hair, the oil can move more easily, making your hair appear greasier.

What happens if I tie my hair after smoothening?

Hair smoothening makes your hair naturally straight by destabilising and then stabilising your hair's bonds which are responsible for the shape of your hair. If you immediately tie your hair after the treatment, it could leave a dent as your hair will try to go back to its natural shape.

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.

How many days does smoothing last?

– Long-lasting effect: Hair smoothening offers many long-term benefits. Its results may last up to two to five months, keeping your hair trouble-free. (These results may depend on factors like growth rate, type of hair, level of curl, and post-treatment care too).

Why is my hair still frizzy after keratin treatment?

One of the common culprits for frizz after a keratin treatment is product buildup. Over time, styling products, oils, and environmental pollutants can accumulate on the hair. So, they start creating a layer of residue that weighs it down and compromises the effectiveness of the keratin treatment.

How many days should I wait to wash my hair after straightening it?

Post-Treatment Hair Care

Avoid Shampooing Right Away: Avoid washing your hair for three days following professional hair straightening. When it is time to wash your hair, avoid any shampoos that contain sulfates as they could damage your hair.

Do I really need to wait 3 days to wash hair after keratin?

Washing your hair too soon after a keratin treatment can strip the keratin from your hair, reducing the treatment's effectiveness. It may cause your hair to revert to its previous texture, losing its smoothness and shine. Always wait at least 72 hours before washing your hair to allow the treatment to set properly.

Which lasts longer, Brazilian blowout or keratin?

A Brazilian blowout is temporary and lasts for 12 weeks. It requires a special conditioner and shampoo to maintain the smoothness. A keratin treatment is temporary and lasts for 3–6 months. It needs a special conditioner and shampoo to prevent the keratin from rinsing off.

What are the negatives of keratin hair treatment?

The Downsides

While it can strengthen strands, keratin treatments can potentially cause other types of damage to your hair. Mensah explains that the process involves high heat and harsh chemicals which can lead to moisture loss and leave hair dry.

When can I wash my hair after smoothing treatment?

You should wait 48 to 72 hours before washing your hair if you perform the treatment at home. Most likely, you didn't utilize high-temperature professional styling equipment to seal the keratin in more quickly.

What happens if I tie my hair up after keratin?

If you strain your keratin-treated hair into tight ponytails, you run the danger of stretching the coating so much that it loses its ability to cling to your hair. You'll end up with frizzy, difficult-to-manage hair as a result.

Which shampoo is best after smoothening?

If you are wondering which shampoo is best for smoothened hair, check out the TRESemmé Keratin Smooth Shampoo and Sunsilk Nourishing Soft & Smooth Shampoo. These shampoos are the best when used after your hair smoothening treatment to maintain the smoothness and shine of your hair.

Do I have to flat iron my hair after keratin treatment?

For the first few days, it's crucial to flat iron your hair twice daily. Heat reactivates the keratin treatment. This implies that if you flat iron your hair, the treatment will not be ruined. The keratin will instead be fully sealed inside the hair fibre.

How do I rehydrate my hair after keratin treatment?

Effective Solutions and Treatments for Combating Dryness
  1. Hydrating Shampoos and Conditioners: ...
  2. Regular Deep Conditioning Treatments: ...
  3. Limit Heat Styling: ...
  4. Use Natural Oils: ...
  5. Protect Hair from Environmental Stressors: ...
  6. Maintain a Healthy Diet:

Which shampoo and conditioner is best after keratin treatment?

Recommended Sulfate-Free Shampoos and Conditioners for Keratin Treated Hair
  • Kera Mane Keratin-Safe Shampoo and Conditioner: ...
  • Moroccanoil Moisture Repair Shampoo and Conditioner: ...
  • Pureology Hydrate Shampoo and Conditioner: ...
  • L'Oréal Paris EverSleek Keratin Caring Shampoo and Conditioner:

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