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SOL-TRC-SAP-300G

Sodium Polyacrylate

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SIZE: 300g
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Sodium Polyacrylate is a highly absorbent polymer used in cosmetics and personal care products, providing effective moisture retention, enhancing texture, and offering thickening and stabilizing properties in formulations.

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General Description:

Sodium Propyl Paraben is a water-soluble preservative belonging to the paraben family, widely used in cosmetic formulations to prevent microbial growth and extend the shelf life of products. It is the sodium salt form of propyl paraben, a common ester of p-hydroxybenzoic acid. Sodium Propyl Paraben is typically a white to off-white powder or granule and is known for its broad-spectrum antimicrobial activity. It is highly effective at inhibiting the growth of bacteria, yeast, and molds, making it a popular choice for preserving personal care products such as lotions, shampoos, and creams.

Uses in the Cosmetics Industry:

Sodium Propyl Paraben is primarily used as a preservative in:

  • Skin creams, lotions, and moisturizers to prevent microbial contamination and maintain product integrity.
  • Shampoos, conditioners, and body washes to protect formulations from bacterial and fungal growth.
  • Makeup products, such as foundations and mascaras, where preservation is essential to avoid spoilage.
  • Hair care treatments and styling products to maintain product quality over time.
  • Some pharmaceutical products, particularly those that are topical in nature.
  • Its ability to prolong product shelf life and prevent contamination is crucial for maintaining the safety and efficacy of cosmetic products.

Side Effects & Hazards:

Sodium Propyl Paraben is considered safe for use in cosmetics at low concentrations (typically up to 0.1-0.3% in formulations) as recommended by regulatory bodies such as the EU and FDA. However, concerns about the potential hormonal-disrupting effects of parabens have led to increased scrutiny and consumer demand for paraben-free formulations. Some studies suggest that parabens, including propyl paraben, may mimic estrogen in the body, leading to concerns about potential links to endocrine disruption. As a result, some individuals may choose to avoid products containing parabens.

In rare cases, Sodium Propyl Paraben may cause skin irritation or allergic reactions, particularly in sensitive individuals. Manufacturers should always adhere to recommended concentrations to minimize these risks. When handling in raw form, it is advisable to use personal protective equipment (PPE), such as gloves and goggles, to avoid prolonged exposure.

Sodium Propyl Paraben should be stored in a cool, dry place, in tightly sealed containers to prevent degradation and contamination.

CAS Number: 9003-04-7

INCI: Sodium Polyacrylate

Composition: SODIUM POLYACRYLATE is the sodium salt of polyacrylic acid, a high molecular weight, water-soluble polymer. It functions as a thickening agent, film-former, absorbent, stabilizer, and viscosity modifier in cosmetic, pharmaceutical, and industrial applications.

Purity Grade: Available in cosmetic, pharmaceutical, and technical grades. Purity specifications vary by application; typically ≥ 95% polymer content (water content may vary).

Appearance: White, odorless powder or granules (may also be supplied as an aqueous solution).

Solubility: Freely soluble in water, forming viscous gels; insoluble in oils and most organic solvents.

Preservation: Pure powder does not require preservatives. Commercial liquid or gel forms may include preservatives (e.g., sodium benzoate) depending on supplier specifications.

Storage: Store in a tightly sealed container in a cool, dry, and well-ventilated area. Protect from moisture, heat, and direct sunlight. Avoid contact with strong oxidizing agents.

Raw Material Sources: Synthesized from acrylic acid (usually petrochemical origin), neutralized with sodium hydroxide.

Manufacture: Produced by free radical polymerization of acrylic acid, followed by neutralization to the sodium salt. Controlled polymerization conditions yield desired molecular weight distribution.

Animal Testing: Not animal tested (based on supplier certification).

GMO: GMO-free (not derived from genetically modified organisms).

Vegan: Vegan-friendly (does not contain or use animal-derived components in manufacturing).

Proposition: SODIUM POLYACRYLATE complies with cosmetic and industrial regulations, including EU Cosmetic Regulation (EC No. 1223/2009), REACH, and FDA cosmetic ingredient guidelines (depending on grade).

Warning: Avoid inhalation of dust. May cause mild eye or respiratory irritation. Slippery when wet due to gel formation. Use appropriate PPE when handling bulk powder. For external use only in cosmetics and personal care applications.

FAQ (Frequently Asked Questions)

Sodium Polyacrylate is the sodium salt form of polyacrylic acid—a high-molecular-weight, anionic polymer known for its super-absorbent properties. It can absorb between 100 to 1,000 times its weight in water, forming a gel-like matrix that thickens and stabilizes formulations.

CAS Number: 9003-04-7 (also includes related numbers such as 25549-84-2, depending on form).

INCI Name: Sodium Polyacrylate.

Sodium Polyacrylate brings multiple functional benefits:

Absorbent: Exceptional water absorption for hydration control.

Thickening & Viscosity Control: Builds gel-like textures in water-based products.

Emulsion Stabilization & Film Formation: Helps form stable emulsions and protective films on skin or hair.

Skin Conditioning & Texture Enhancement: Contributes smooth, glossy feel and a soft, supple layer on the skin.

Body Care: Creams or lotions where gel texture and moisture retention are desired.

Haircare & Styling: Formulas needing firm hold, viscosity, and improved texture.

Emulsified Products: Lotions/creams requiring stability and uniformity.
The ingredient also finds wide usage in hygiene products such as diapers due to its absorption capacity, although that lies outside personal care per se.

Yes. The Cosmetic Ingredient Review (CIR) panel has determined it to be safe when used appropriately. It generally does not irritate the skin, as its large polymer chain prevents penetration. However, contamination with residual acrylic acid during production can cause irritation—manufacturers should ensure levels are kept low (typically below recommended PPM levels). In powder form, inhalation and slick wet surfaces pose handling considerations.

As a polymeric ingredient, Sodium Polyacrylate is not inherently irritating. Skin penetration is minimal due to high molecular weight. However, residual acrylic acid (a manufacturing impurity) can irritate skin when present in higher concentrations. Additionally, fine powder forms may irritate respiratory tracts if inhaled.

Sodium Polyacrylate is not readily biodegradable and may persist in the environment. Overuse or disposal in large quantities (e.g., in wastewater systems) could pose ecological issues like soil salinization or sewer blockages. Responsible usage and formulation minimization are recommended.

Yes. Natural or biodegradable alternatives include:

  • Polyglutamic Acid
  • Succinoglycan
  • Sclerotium Gum

These serve similar functions—absorption, thickening, and film-forming—with differing environmental or sensory properties.

Usage levels vary depending on function and product type but typically range from 0.1 % to 2 %, tailored for the desired texture, absorption, and stability. It is best to optimize through formulation trials.

Store in cool, dry conditions, preferably in airtight containers to prevent moisture uptake.

Exercise caution when handling dry powders: avoid inhalation, and be aware that gel formed upon contact with water can create slippery surfaces.