Glutamic acid

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Raw materials

Glutamic acid

Amino acid for hydration, skin and hair care and support for the natural moisture balance of the skin.

Recommended concentration: 0.01-0.1%

Raw material description

Glutamic acid is a natural amino acid that plays an important role in the biological processes of the skin and in maintaining its hydration. In cosmetic formulations, it is used as a humectant, conditioning ingredient and pH regulator. One of its particularly interesting characteristics is its association with the skin’s natural moisturizing factor (NMF), a system of substances that participate in binding and retaining water within the stratum corneum of the epidermis.

Unlike ingredients that provide hydration primarily by creating a surface film, glutamic acid belongs to a group of small, hydrophilic molecules that can participate in maintaining the skin’s moisture balance. Thanks to its mildness, it is suitable for the development of various skin care products, including formulations intended for sensitive and dry skin.

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Description

Description

Effects on the skin

Hydration and maintenance of humidity

Glutamic acid acts as a humectant, or an ingredient that helps bind water. As an amino acid linked to the skin’s natural hydration system, it is interesting in formulations aimed at maintaining the softness, suppleness, and hydration of the epidermis.

Support for natural moisturizing factor (NMF)

Free amino acids are an important part of the skin’s natural moisturizing factor. Glutamic acid belongs to this group of compounds and is of particular interest in formulations that seek to mimic or supplement the natural components of the stratum corneum.

Sensitive skin care

Due to its mild profile, glutamic acid can be used in products intended for sensitive skin. It is suitable for moisturizing serums, masks and other products that aim to provide a pleasant feeling on the skin and reduce the feeling of dryness.

Improving the softness and suppleness of the skin

Contributing to hydration can help achieve a softer and smoother skin feel, making glutamic acid a useful addition to moisturizing cosmetic formulations.

Effects on hair

Glutamic acid is also used in hair care products thanks to its conditioning and antistatic properties. It can contribute to a more comfortable hair feel, reduce static electricity and improve the cosmetic properties of hair care products. It is particularly interesting for the formulations of conditioners, masks, leave-in products and scalp care products.

Application in cosmetic products

  • Moisturizing facial serums
  • Skin care creams and lotions
  • Hydrating face masks
  • Products for sensitive and dry skin
  • Tonics and essences
  • Hair conditioners and masks
  • Leave-in hair care products
  • Scalp care products

Recommendations for formulation

Glutamic acid is suitable for aqueous phase formulations. It is recommended to pre-disperse and dissolve in an appropriate amount of water with stirring. Due to its acidic nature, it can affect the final pH value of the formulation, therefore, after addition, it is necessary to check and adjust the pH of the finished product if necessary.

Interesting fact

Glutamic acid is one of the amino acid building blocks of polyglutamic acid, an ingredient that has attracted a lot of attention in the development of moisturizing cosmetics in recent years. While polyglutamic acid as a polymer can create a moisturizing film on the skin surface and bind significant amounts of water, free glutamic acid acts as a small hydrophilic molecule with different physicochemical properties.

It is this difference that shows how much the molecular structure of an individual ingredient can influence its behavior in a cosmetic formulation.