Introduction
Keratin is a basic protein naturally present in human hair. This substance is responsible for the structure, strength and elasticity of hair. In the hair product industry, keratin has become a key element in treatments to improve the health and appearance of hair. We explore in more depth what exactly hair keratin is and how it can be used. The introduction provides an overview of the topic of hair keratin, introducing the importance of this protein for hair health and its growing popularity in cosmetic treatments. This section explains in detail what exactly keratin is, highlighting its role in hair and its protein structure. The difference between natural keratin and that used in treatments is emphasised.
What is keratin?
Keratin is a fibrous protein that forms an essential part of the structure of hair, nails and skin. In hair, keratin is organised into complex structures that provide strength and resistance. Natural keratin is produced by keratinocytes, specialised cells found in hair follicles. These keratinocytes synthesise the protein, which is then incorporated into the hair structure.
Keratin structure
Keratin consists of a series of polypeptide chains organised in helical structures. These chains are held together by disulphide bonds, which give the protein its strength and stability. The helical structure of keratin allows the formation of intermediate filaments that aggregate to form larger fibrils, thus giving hair its strength.
Difference between natural keratin and keratin used in treatments
The keratin used in hair treatments is often derived from natural sources, such as sheep wool, bird feathers or other animal proteins. This hydrolysed keratin is broken down into smaller fragments that can better penetrate the hair cortex. Hydrolysed keratin is therefore used in many cosmetic products for its ability to repair and strengthen hair.
How does hair keratin work?
Keratin treatment involves applying a keratin product to the hair, which is then sealed with heat. This process allows the keratin to penetrate the hair and fill in damaged areas of the cuticle. The heat helps to fix the keratin, making the hair smoother and shinier.
Treatment process
- Washing: The hair is washed with a clarifying shampoo to remove product residues and open the cuticles.
- Keratin application: The keratin product is applied evenly to the hair.
- Drying: The hair is partially dried.
- Heat sealingUsing a straightener, keratin is sealed into the hair at high temperatures.
- Rinsing and styling: After a waiting period, the hair is rinsed and dried again to complete the treatment.
Benefits of keratin for hair
Frizz reduction
One of the main benefits of keratin treatments is the significant reduction of frizz. Keratin fills the gaps in the hair cuticle, creating a smoother surface and reducing frizz.
Damage Repair
Keratin can repair damage caused by chemical treatments, heat and other environmental factors. By penetrating into the hair cortex, keratin helps rebuild the internal structure, making hair stronger and more resilient.
Hydration and shine
Keratin treatments improve the hydration of hair, making it softer and shinier. Keratin helps retain moisture within the hair, improving its overall appearance.
Types of keratin treatments
Natural keratin treatments
These treatments use hydrolysed keratin derived from natural sources. They are often less aggressive and more suitable for damaged or brittle hair.
Treatments with chemicals
Some keratin treatments include formaldehyde or other chemicals to improve the effectiveness of the smoothing process. These treatments may offer longer-lasting results, but they can also pose greater health risks.
Differences between treatments
Natural keratin treatments are generally safer and gentler, but may require more frequent applications. Treatments with chemicals, although more effective, may cause irritation or adverse reactions if not used correctly.
How to choose the best keratin treatment
Assessing hair type
It is important to consider your hair type before choosing a keratin treatment. Fine, thick, curly or straight hair may react differently to different types of treatments.
Personal needs
Personal needs, such as the desired duration of results or scalp sensitivity, should influence the choice of treatment. It is advisable to consult a professional to determine the most suitable treatment.
Scalp conditions
Scalp conditions, such as the presence of dandruff or irritation, must be taken into account. Some treatments may aggravate these conditions.
Tips for using keratin for hair
Preparation
Before applying a keratin treatment, it is essential to prepare the hair properly, using a clarifying shampoo to remove residues and open the cuticles.
Correct application
Following the product instructions is crucial for best results. It is important to apply the product evenly and seal the keratin with heat properly.
Frequency of use
Excessive use of keratin treatments can damage the hair. It is advisable to limit treatments to once every few months, depending on the condition of the hair.
How to maintain treatment results
Complementary products
Using sulphate-free hair care products specifically for keratin-treated hair can help prolong treatment results.
Maintenance Strategies
Avoiding excessive use of heat tools and protecting hair from the sun and chlorinated water can help keep hair healthy and shiny.
Possible side effects and precautions
Side effects
Excessive use of keratin treatments, especially those containing formaldehyde, can cause scalp irritation, dryness and hair breakage.
Precautions
It is important to carry out a patch test before using a new product and to follow all safety instructions. Consulting a professional can help minimise risks.
Frequently asked questions on keratin for hair
1. Does keratin damage hair?
When used correctly, keratin does not damage the hair. However, excessive or improper use can cause dryness and brittleness.
2. What is the duration of the effects of keratin on hair?
The effects of a keratin treatment can last from a few weeks to several months, depending on the type of treatment and the condition of the hair.
3. Can I do keratin treatments at home?
Keratin treatments can be done at home, but it is essential to follow instructions carefully and use high-quality products to avoid damage.
4. Can keratin be used on all hair types?
Yes, keratin can be used on all hair types, but it is important to choose the right treatment according to hair type and specific needs.
5. Keratin makes hair smoother permanently?
Treatments at the keratin are not permanentbut can temporarily reduce frizz and make hair smoother and more manageable.
Conclusion
Hair keratin is a popular solution for improving the health and appearance of damaged hair. It is crucial to understand its benefits, how to use it and the necessary precautions to ensure positive results without compromising hair health. With proper use and maintenance, keratin treatments can transform hair, making it stronger, shinier and healthier.
