El lactic acid It is an organic compound widely used in various sectors, including the cosmetic, pharmaceutical and food industries. In the field of hair care, this component has gained notoriety due to its ability to strengthen, moisturize and smooth hairIts use in aesthetic treatments, especially in straightening without aggressive chemicals such as formaldehyde, makes it a healthy and effective alternative for those seeking to improve the appearance and health of their hair.
What is lactic acid?
Lactic acid was first isolated in 1780 by the Swedish chemist Carl Wilhelm Scheele, who discovered it in the sour milk, which explains its name. Later, it was identified that it is also produced by the fermentation of certain carbohydrates, which facilitated its industrial production.
This compound is found naturally in numerous products of biological origin and plays an essential role in human metabolism, especially during intense physical activity. In addition, it is used in cosmetic industry for its properties Exfoliating, moisturizing and pH regulating.
Benefits of lactic acid for hair
The use of lactic acid in hair products is becoming more and more frequent due to the multiple benefits it provides. It acts as a conditioner and pH regulator, improving the resistance and appearance of the hair fiber.
- Deep hydration: Helps retain moisture in the hair fiber, preventing dryness and frizz.
- Hair Strengthening: Improves elasticity and reduces capillary fragility.
- Exfoliating action: It contributes to the elimination of dead cells, promoting a healthier scalp.
- Straightening and frizz reduction: Being a mild acid, it helps to smooth the hair cuticle, providing a smoother, more manageable appearance.
- Improved nutrient absorption: Facilitates the penetration of hair treatments, maximizing their effectiveness.
Lactic Acid Straightening: How Does It Work?
One of the most popular lactic acid treatments is hair straighteningUnlike other methods such as keratin with formaldehyde or Japanese straightening, lactic acid does not sensitize the hair fiber and does not generate harmful long-term effects.
- Application: Lactic acid is distributed in thin sections of the hair, ensuring even coverage.
- Exhibithion time: Depending on the type of hair, the product is left to act for between 40 and 50 minutes.
- Rinse and dry: Rinse with warm water and blow dry your hair.
- Meticulous ironing: The hair is divided into thin layers and the flat iron is used at a controlled temperature to set the straightening.
- Lasting Results: The straightening can last between three and six months, depending on the maintenance and porosity of the hair.
Comparison with other types of straightening
There are various methods for straightening hair, but lactic acid is positioned as one of the safest and most effective options:
- Lactic acid vs. keratin: Keratin smoothes hair but does not create permanent straightening. In addition, some keratin treatments contain formalin, which can be toxic.
- Lactic acid vs. Japanese straightening: Japanese straightening changes the hair structure, which can have adverse effects on fine or previously processed hair. Lactic acid, on the other hand, is gentler and maintains the naturalness of the hair.
- Lactic acid vs. exoplasty: Exoplasty is a treatment that uses proteins to straighten hair without modifying its structure. Although it is a safe method, it may be less long-lasting than the use of lactic acid.
When evaluating straightening options, it is worth considering the benefits of lactic acid and how it compares to alternatives such as Japanese straightening.
Precautions when using lactic acid on hair and skin
Although lactic acid is a safe ingredient for hair and skin, it is important to keep in mind some recommendations:
- Avoid use on irritated scalp: If you have wounds or extreme sensitivity, consult a specialist before using products with lactic acid.
- Check the concentration: In cosmetic treatments, it should be used in adequate concentrations to avoid adverse effects.
- Use hair sunscreen: Since lactic acid can increase sensitivity to UV radiation, it is advisable to apply products with sun filters.
Lactic acid has established itself as an excellent option for maintaining healthy hair, fighting frizz and achieving natural-looking straightening. Its use in hair cosmetics continues to grow, as it offers effective results without compromising the health of the hair. If you are looking for a safe and long-lasting alternative to improve the appearance of your hair, lactic acid treatments may be the best choice.
