Description

Polyglutamic Acid is a natural polymer derived from glutamic acid, an amino acid. It is used in cosmetics and personal care products for its hydrating and conditioning properties. Known for its ability to retain moisture, it helps improve skin texture and hydration.

Chemical Composition and Structure: Polyglutamic Acid is composed of:

Glutamic Units: Sequences of glutamic acid linked by peptide bonds to form a polymer.
Structure: The chemical structure includes a chain of glutamic acid residues with amide and carboxylic groups along the chain, giving the polymer its moisture-attracting and retaining properties.

The molecular structure is characterized by a long chain of amino acids forming a water-soluble polymer, which enables effective hydration and conditioning of the skin.

Physical Properties:

Appearance: White or slightly off-white powder, or a viscous solution when dissolved in water.
Odor: Generally neutral.
Density: Light in powder form, viscous in solution.
Solubility: Soluble in water, forming viscous solutions.

Production Process: The production of Polyglutamic Acid involves:

Fermentation: Polyglutamic Acid is often produced through the fermentation of specific bacteria that synthesize the polymer from glutamic acid.
Purification: After fermentation, the polymer is purified to remove impurities and obtain a high-quality product.
Drying/Milling: In some formulations, Polyglutamic Acid is dried and milled into a powder for use in cosmetics.

Applications:

Cosmetics: Used in various skin care products, including:
Serums and Creams: Provides deep hydration, improving skin texture and softness.
Masks: Helps maintain moisture and enhance the effectiveness of hydrating masks.
Anti-Aging Products: Contributes to reducing the appearance of fine lines and wrinkles by improving skin elasticity.
Hair Care Products: Used in hair treatments to enhance hydration and shine.

Environmental and Safety Considerations:

Environmental Impact: The production of Polyglutamic Acid should be managed sustainably to minimize environmental impact. The use of bacteria for fermentation is relatively eco-friendly, but responsible practices are important during production.
Safety: Polyglutamic Acid is generally considered safe for use in cosmetics and personal care products when used as directed. It is well-tolerated by most individuals, though those with sensitive skin or specific allergies should exercise caution.

INCI Functions:


Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
Synonyms:

CAS: 25513-46-6