Keratin Treatment vs. Progressive Hair Treatment

Keratinebehandeling vs. Progressieve Haarbehandeling

The desire for smooth, shiny and frizz-free hair has led to the enormous popularity of the progressive hair treatment, often known in the Netherlands as the keratin treatment, worldwide.

While this treatment offers many benefits, there are important nuances and misconceptions that you should understand before choosing it. Let’s set the record straight and delve deeper into what this hair treatment really entails.

What is a Progressive Hair Treatment?


A progressive hair treatment, also called "Progressiva Capilar" in Brazil, is a chemical treatment that not only straightens the hair, but also makes it frizz-free, smooth and easier to maintain. The word "progressive" refers to the fact that the results improve after each treatment, because the hair is increasingly nourished and strengthened with keratin. Many people think that this is a completely natural treatment, but that is a misconception.


Without a chemical process, hair simply cannot be straightened, especially if it is naturally curly or frizzy. This makes it important to know what ingredients are used in the treatment. Some formulas contain harmful substances such as formaldehyde, while others, such as HAIZ, are designed to avoid these risks.

How Does the Progressive Hair Treatment Affect the Keratin in your Hair?


Our hair consists of thousands of chains of keratin, an essential protein that determines the structure and health of the hair.


Keratin is crucial for the strength and elasticity of the hair. When the hair is damaged, such as dry or brittle hair, the keratin chains are weakened. Progressive hair treatments, or keratin treatments, work directly on the keratin in the hair, with the aim of making the hair smoother. The chemical process of the treatment changes the keratin bonds in the hair structure.


This is done by breaking the sulphur bridges in the hair and making the hair structure more supple. This makes the hair smoother and straighter.

The Importance of Formaldehyde-Free Products

The use of formaldehyde in hair treatments has caused much debate worldwide. Although it is effective in straightening hair, it can pose serious health risks such as irritation, allergies and even respiratory problems.


Therefore, the regulations regarding the use of formaldehyde have become increasingly strict, and more and more customers prefer products that are free of this substance. Haiz Keratine responds to this demand by offering a safe and unique formula that is equally effective. This makes it an ideal choice for those looking for a keratin treatment that delivers both excellent results and peace of mind.

What Happened After the Formaldehyde Ban?

After the ban on formaldehyde, the market started to focus on new, safer formulas. Innovations like organic progressive hair treatments have turned the industry upside down while still offering impressive results.


An example of this is the keratin from HAIZ, which uses the so-called "Single Pass" technology. This technology was developed to make the treatment easier, faster and safer. This new generation of products focuses not only on straightening the hair, but also on nourishing, hydrating and strengthening the locks.


How Does the Treatment Work?


The progressive hair treatment or keratin treatment is based on a combination of special formulas that work on the hair structure. This process is as follows:


  1. Cleansing : The hair is thoroughly washed with a shampoo to remove any residue of dirt and styling products.
  2. Application of the Product : The keratin formula is evenly distributed over the hair.
  3. Heat activation : Using a straightening iron seals the formula into the hair, which provides the smoothing effect.
  4. Aftercare : The hair is washed and styled, after which the client is instructed on how to best maintain the results.

This process transforms even the most unruly locks into beautifully smooth and shiny hair.

What Should You Pay Attention To?

Benefits of a Progressive Hair Treatment / Keratin Treatment

A progressive hair treatment with products such as Haiz Keratin offers numerous benefits:


  1. Smooth and Frizz-Free Hair
    The treatment tames even the most unruly locks, leaving your hair looking smooth and nourished.

  2. Long Lasting Results
    With the right aftercare, your hair will remain straight, shiny and easy to style for months.

  3. Suitable for colored and bleached hair
    Unlike some traditional treatments , Haiz Keratin is safe to use on chemically treated hair, without the risk of damage.

  4. Easy to Style
    You need less time and products to style your hair every day.

  5. Formaldehyde free
    With Haiz you don't have to worry about harmful substances – only healthy and radiant hair remains.

A progressive hair treatment can provide an amazing transformation, but only if it is done correctly with the right products. Here are a few key points to look for:


  • Check the Ingredients: Formaldehyde-containing formulas can be harmful to your health. Choose products that are free of this substance and use safe, modern technologies.
  • Work with a Professional: A progressive hair treatment is a chemical process that requires precision and expertise. A well-trained professional can customize the treatment to your hair type and ensure the best results without damage.
  • Beware of Misleading Claims: Some salons present this treatment as “all natural” or “chemical free”. This is impossible, as chemicals are needed to permanently straighten hair. Don’t be fooled and always communicate clearly with your stylist.

Innovation in Safety and Quality

With the growing demand for safe and effective hair treatments, Haiz has emerged as an innovation in the hair care industry. Haiz offers a formaldehyde-free solution that is both safe and effective. The brand focuses on offering a treatment that not only smoothes and shines hair, but also nourishes and strengthens it, without the damaging effects of formaldehyde.


What Makes Haíz Unique?


  • Formaldehyde-free : Haíz offers a safe, modern solution without formaldehyde, which prevents many health risks.
  • Innovative Formula : The formula was developed in Brazil, where progressive hair treatment originated. Haíz has optimized the process with ingredients that improve the health of your hair instead of damaging it.
  • Safe for All Hair Types : Whether you have natural hair or dyed/bleached hair, Haíz is safe to use without damaging your hair. This makes Haíz one of the safest and most reliable brands on the market for progressive hair treatments.

A tailor-made treatment


The key to a successful progressive hair treatment lies not only in the product, but also in the expertise of the professional performing the treatment. A good hairdresser understands the specific needs of your hair and adapts the treatment accordingly.

Choose Safety, Choose Quality

A progressive hair treatment, or as it is often referred to in the Netherlands as a keratin treatment, is an investment in your hair. It is a powerful solution for those who want smooth, frizz-free and easy to maintain hair. Although the name may sound simple, there is an advanced chemical process behind it.

It is therefore crucial to opt for safe formulas and experienced professionals.


Remember, the right treatment starts with knowledge. Being well-informed will help you make a choice that will not only give you beautiful results, but is also safe for you and your hair.


Do you have any questions or would you like more information about this fantastic treatment? Feel free to send your question to info@haiz.nl.

Back to Blog