Hair has always been considered an important component of a person’s appearance and well-being. Therefore, many people seek to change their hairstyle by adding volume and texture with the help of various hair curling techniques. However, the classic perm has its limitations and can negatively affect the hair structure. In recent years, new methods have appeared, including biochemical hair curling, which is a safer and less harmful alternative to classic curling.
Overview of hair curling technologies
A classic perm, also known as a chemical perm, is one of the most common methods of hair perming. In classical curling, chemical solutions are used, often containing thioglycolic acid or guanidine, which dilute the protein bonds of hair, changing their structure. Then the hair is twisted on special curlers or bobbins, and fixed to keep the new shape of the curl.
However, the classic curl has its limitations:
- Hair damage : Chemical solutions can damage the hair structure, making it dry, brittle and lifeless. This is especially true for already damaged or dyed hair.
- Hair restoration : After a classic perm, hair needs additional care and restoration, as its natural structure has been changed by chemical influence.
- Limited selection of curling styles : The shape of the curling after the classic method is determined by curlers or bobbins, which limits the possibility of a variety of hair styling styles.

Hairdressing chemicals used to create curls can contain a variety of substances, but two main types of chemical solutions are used most often:
- Thioglycolic acid : This substance thins the protein bonds in the hair, allowing it to change shape. Thioglycolic acid has the ability to maintain the new shape of the curl after fixation.
- Guanidine : This chemical solution also acts on the protein bonds, allowing the hairdresser to create a new shape for the hair. It differs from thioglycolic acid in the approach and time of application.
Hairdressing chemicals may also contain various additional ingredients that help retain moisture, improve hair texture, or have hair nourishing properties.
The history of the development of hair curling procedures
The history of hair curling has more than a hundred years of tradition. The first attempts at curling hair appeared in the 19th century, when hairdressers experimented with various chemicals to change the structure of hair. In 1906, the German hairdresser Carl Nesser created the first chemical perm technology using ammonia solutions.
Over time, curling technologies have been constantly evolving. In the 1970s and 1980s, Bulgarian perms and acid perms appeared in attempts to reduce hair damage. In recent years, ammonia-free solutions and other less aggressive methods have become popular, including biochemical hair perming, which allows you to change the shape of the hair with less risk of damage.
Thanks to constant research and improvement, modern curling techniques have become less harmful and safer, providing more opportunities to create different hair styles and shapes.
The main characteristics of bio-curling
Biochemical hair curling is an innovative curling method that uses less aggressive chemicals to create a curl and preserve the natural hair structure. This method combines the benefits of classic curling with updated, safer components that have less negative impact on the hair.
The main characteristics of biochemical hair curling:
- Preservation of hair structure : The difference of biochemical curling is that it does not change the hair structure at the molecular level, but only dilutes the protein bonds, which allows you to preserve the natural elasticity of the hair.
- Reduction of hair damage : Biochemical substances used in the procedure have less potential to damage hair, compared to standard chemical solutions used in classic perm.
- Natural look of the curl : Biochemical curl allows you to preserve the naturalness and softness of the hair, giving a natural look of the curl.
- Suitable for different hair types : This method can be used on both healthy and damaged hair, as well as on different hair types.

The principle of action of biochemical curling consists in the use of chemical solutions with a lower concentration of aggressive substances, which help to dilute the protein bonds in the hair, while preserving its structure.
The main steps of the principle of action of biochemical curling:
- Hair preparation : Hair is treated with a special shampoo to remove excess styling products and impurities.
- Application of the biochemical solution : The biochemical solution is evenly distributed along the entire length of the hair, interacting with the protein bonds.
- Hair curling : The hairdresser twists the hair on special curlers or bobbins, giving it the desired curl shape.
- Fixation of the curl : After waiting the necessary time, the curl is fixed using a fixing agent.
Biochemical curling allows you to achieve the desired result by changing the shape of the hair, while minimizing the risk of damage and preserving its natural appearance. This principle of action distinguishes biochemical hair curling from classical hair curling, which can significantly change the hair structure and cause its damage.
Advantages and disadvantages of biological hair perm
Advantages of biochemical curling compared to other curling methods:
- Less hair damage : One of the main benefits of biochemical perming is less hair damage. Thanks to the use of less aggressive chemicals, the biochemical perm preserves the natural structure of the hair and does not destroy it at the molecular level, which makes it safer for the hair.
- Preservation of hair elasticity : Since the biochemical perm does not change the structure of the hair, it remains elastic and natural, allowing you to easily create a variety of arrangements and styles without the need to restore the hair after the procedure.
- The possibility of curling thin and damaged hair : Biochemical curling is suitable even for thin and damaged hair, allowing it to gain volume and texture without serious consequences for the condition of the hair.
- Safer for health : The use of less aggressive chemicals makes biochemical curling less harmful to the health of the client and the hairdresser.
Discussion of possible negative consequences and limitations of biochemical curling:
- Duration of the effect : Biochemical perm may have a less long-lasting effect compared to the classic perm. It may depend on the type of hair, structure, as well as the individual characteristics of each person.
- Limited selection of perm styles : Compared to some other perm methods, biochemical perming may have a limited selection of styles as it does not change the structure of the hair at the molecular level.
- Depending on the type of hair : The effectiveness of biochemical curling may depend on the type of hair. Some hair types can retain curl more quickly, while others can lose it more quickly.
- Possible allergic reactions : As in any chemical process, the possibility of allergic reactions to the components of the biochemical solution cannot be excluded, although the risk of such reactions is usually lower compared to classic curling.
In conclusion, biochemical hair perming has its advantages, including less damage to the hair and preservation of the natural structure. However, its possible disadvantages include a less lasting effect, a limited choice of styles and dependence on hair type. It is necessary to consider these factors before choosing a curling method, paying attention to the individual characteristics and condition of each person’s hair.
Hair bioperm procedure
Biochemical hair perm is a rather complex process that requires attention to detail and a professional approach. To achieve optimal results and ensure the safety of the client and the hairdresser, the following steps should be followed:
Step 1: Hair preparation
- The client should wash their hair with a special shampoo to remove excess styling products and impurities.
- Before applying the biochemical solution, the hair should be degreased. For this, a special tool is used to remove the greasy layer from the hair.

Step 2: Application of a biochemical solution
- The biochemical solution, which contains less aggressive chemicals, is evenly distributed along the entire length of the hair. This solution acts on protein bonds, thinning them, but not breaking the hair structure.
- The hairdresser must follow the manufacturer’s instructions and handle well the time the biochemical solution is left on the hair. Failure to observe or exceeding the time will affect the result of curling.
Step 3: Curling the hair
- After waiting the specified time, the hairdresser twists the hair on special curlers or bobbins, giving it the desired curl shape. The number and size of curlers or bobbins depend on the type of hair and the desired curl shape.
Step 4: Fixing the curl
- The curl is fixed using a special fixing agent, which allows you to save the created shape of the curl.
- After applying the fixative, the hair can be dried at room temperature or with a hair dryer using a cold setting.
Important points during the procedure:
- You should always follow the instructions and recommendations of the manufacturer regarding the use of the biochemical solution and other means.
- Before the procedure, it is recommended to conduct an allergic reaction test to ensure the safety of using products on the client’s hair.
- It is important to observe the exposure time of the biochemical solution on the hair. Failure to observe or exceeding the time may affect the result of curling.
- When performing a perm, it is worth taking into account the individual characteristics and condition of the client’s hair in order to achieve the best results.
- Ensuring proper hygiene and hair care after the procedure is an important aspect to maintain and prolong the curling effect.
By following the procedure and taking into account the important points, biochemical hair curling can be performed professionally and safely, providing a natural and stylish result.
Tips for hair care after bioperm
After biochemical hair perming, proper care is key to preserving and maintaining its effect. Here are some tips and recommendations that will help preserve the beauty and health of curls:
- Avoid washing your hair for the first 24-48 hours : Give the biochemical solution time to harden and set the curl. Avoid washing your hair for the first few days after the procedure to ensure the long-lasting effect.
- Use a special shampoo and conditioner for perms : Use a shampoo and conditioner designed specifically for perm care. They will help maintain moisture and the natural look of the hair.

- Avoid using hot air : Try to avoid blow-drying your hair at high temperatures or using hot styling tools. Hot air can increase the risk of hair damage.
- Use a heat protectant : If you have to use a blow dryer, flat iron, or other heat tool to style your hair, always use a heat protectant to reduce the risk of damaging your curls.
- Regular use of hair repair products : Use products to repair and nourish hair, such as masks or serums, which will help maintain the health and beauty of curls.
- Do not break the perm at night : Do not break or smooth the perm while you sleep. Sleeping on a special pillow with a silky surface to preserve the curl shape.
- Regular visits to the hairdresser : Regular haircuts and checks on the condition of curls will help maintain the freshness and beauty of the hair.
Remember that proper care after biochemical curling will help preserve the natural beauty and health of the hair, allowing you to enjoy the wonderful effect of curling for a long time.
Conclusions
Biochemical hair curling is a safer and less harmful alternative to classic curling. Its principle of action allows you to preserve the natural structure of the hair, providing a long-lasting and healthy curling effect. Despite some limitations, a biochemical perm can satisfy most requirements and be an excellent choice for those who want to change their hairstyle without harming their hair.
Sources
- Haircare Science: Chemistry of Hair Care Products. American Chemical Society.
- Cationic Polymers: Advances and Opportunities. Royal Society of Chemistry.
- Hair Curling: From the Chemical Perm to Modern Techniques. International Journal of Cosmetic Science.
