Description

Hyaluronic Acid/Polyglutamic Acid Crosspolymer is a hybrid ingredient that combines the hydrating properties of hyaluronic acid with the moisture-retaining capabilities of polyglutamic acid. This crosspolymer is designed to offer enhanced hydration, improved skin texture, and a more effective moisture barrier in cosmetic formulations.

Chemical Composition and Structure:

Hyaluronic Acid: A natural polysaccharide composed of repeating units of glucuronic acid and N-acetylglucosamine. It has a high capacity for binding and retaining water.
Polyglutamic Acid: A polymer of glutamic acid residues, known for its ability to attract and retain moisture.
Crosspolymer Structure: The crosspolymer is created by chemically linking hyaluronic acid and polyglutamic acid to form a network structure. This crosslinking enhances the stability and performance of both polymers, leading to a synergistic effect.

The structure of the crosspolymer includes a network of hyaluronic and polyglutamic acid chains that interact to form a cohesive gel-like substance. This structure helps to lock in moisture and create a barrier on the skin.

Physical Properties:

Appearance: Typically a clear, gel-like substance or powder, depending on the formulation.
Odor: Generally neutral.
Density: Varies based on the form (gel or powder); gels are typically viscous.
Solubility: Soluble in water, forming a gel-like consistency in solution.

Production Process: The production of Hyaluronic Acid/Polyglutamic Acid Crosspolymer involves:

Synthesis: Combining hyaluronic acid and polyglutamic acid through a chemical reaction that forms a crosslinked network. This process ensures the stability and performance of the crosspolymer.
Purification: The resulting crosspolymer is purified to remove any residual chemicals or impurities.
Processing: Depending on the intended use, the crosspolymer may be processed into a gel or powder form for incorporation into cosmetic formulations.

Applications:

Cosmetics: Used in various skin care products, including:
Moisturizers and Serums: Provides deep and long-lasting hydration, improves skin texture, and enhances the skin’s moisture barrier.
Anti-Aging Products: Helps to reduce the appearance of fine lines and wrinkles by improving skin elasticity and hydration.
Eye Creams and Masks: Offers targeted hydration and smoothing effects.
Personal Care Products: Can be used in other formulations where enhanced hydration and texture improvement are desired.

Environmental and Safety Considerations:

Environmental Impact: The production of Hyaluronic Acid/Polyglutamic Acid Crosspolymer should be managed with consideration to environmental impact. The synthesis process should be conducted in a way that minimizes waste and uses sustainable practices.
Safety: The crosspolymer is generally regarded as safe for use in cosmetics and personal care products when used as directed. It is well-tolerated by most skin types, though individuals with sensitive skin or specific allergies should use with caution.

INCI Functions:


Antioxidant agent. Ingredient that counteracts oxidative stress and prevents cell damage. Free radicals, pathological inflammatory processes, reactive nitrogen species and reactive oxygen species are responsible for the ageing process and many diseases caused by oxidation.

Adhesive agent. It is one of the methods to improve and optimise the adhesion of the formulation on the skin.

Humectant. Hygroscopic compound used to minimise water loss in the skin and to prevent it from drying out by facilitating faster and greater absorption of water into the stratum corneum of the epidermis. The epidermis is the most superficial of the three layers that make up human skin (epidermis, dermis and hypodermis) and is the layer that maintains hydration in all three layers. In turn, the epidermis is composed of five layers: horny, the most superficial, granular, spinous, shiny, and basal. Humectants have the ability to retain the water they attract from the air in the stratum corneum and have the function of moisturising the skin. They are best used before emollients, which are oil-based.

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.

Skin protectant. It creates a protective barrier on the skin to defend it from harmful substances, irritants, allergens, pathogens that can cause various inflammatory conditions. These products can also improve the natural skin barrier and in most cases more than one is needed to achieve an effective result.
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