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Sodium Propyl Paraben

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Sodium propyl paraben is a preservative commonly used in the food, cosmetic, and pharmaceutical industries to prevent the growth of bacteria and fungi. It's a white, crystalline powder that is highly water-soluble.

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General Description:


There are some concerns about parabens in general, as they are known to be endocrine disruptors in high concentrations. However, at the concentrations used in cosmetics (typically less than 1%), Sodium Propyl Paraben is generally regarded as safe. For consumers with concerns, paraben-free formulations are available as an alternative.

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: 35285-59-9

INCI Name: Sodium Propylparaben Composition: The sodium salt of propyl paraben; a preservative used in cosmetics and personal care products to prevent microbial growth

Purity Grade: Cosmetic/Pharmaceutical Grade

Appearance: White to off-white crystalline powder

Solubility: Soluble in water and alcohol; forms clear solutions at typical usage concentrations

Preservation: Acts as a preservative by inhibiting the growth of bacteria, molds, and yeasts in cosmetic formulations

Storage: Store in a cool, dry place, away from direct sunlight, heat, and moisture; keep container tightly closed

Raw Material Sources: Synthetic; derived from p-hydroxybenzoic acid through esterification with propyl alcohol

Manufacture: Produced via chemical synthesis; typically made by reacting propyl alcohol with p-hydroxybenzoic acid, followed by neutralization with sodium hydroxide

Animal Testing: Animal testing policies vary by supplier; many manufacturers offer cruelty-free alternatives, but it is recommended to verify with the supplier

GMO: Typically non-GMO, as it is synthetically produced

Vegan: Yes; synthetic and plant-derived, free from animal-based ingredients

Proposition: Subject to California Proposition 65 if residual levels of parabens are high; however, it is generally considered safe for use within regulatory limits

Warning: May cause skin irritation in sensitive individuals; use in formulations is regulated due to concerns over hormone-disrupting effects of parabens in high concentrations

FAQ (Frequently Asked Questions)

Sodium Propyl Paraben is a salt form of propyl paraben, commonly used as a preservative in personal care and cosmetic products. It helps to prevent microbial growth and extend the shelf life of products by inhibiting the growth of bacteria, mold, and yeast.

CAS Number: 35285-69-9
INCI Name: Sodium Propyl Paraben

Effective preservative that prevents contamination by bacteria, fungi, and other microorganisms
Helps extend the shelf life of personal care products
Prevents the degradation of other ingredients, ensuring product stability

Sodium Propyl Paraben is used in:
Shampoos and conditioners
Moisturizers, creams, and lotions
Hair styling products
Deodorants and antiperspirants
Makeup and color cosmetics
Body washes and cleansers

Sodium Propyl Paraben is approved by regulatory authorities such as the FDA and the European Commission for use in cosmetic formulations, but its usage is restricted to low concentrations, generally up to 0.1% in finished products. It is considered safe when used in accordance with recommended guidelines

There are some concerns about parabens in general, as they are known to be endocrine disruptors in high concentrations. However, at the concentrations used in cosmetics (typically less than 1%), Sodium Propyl Paraben is generally regarded as safe. For consumers with concerns, paraben-free formulations are available as an alternative.