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MAGNESIUM BENZOATE.

Valuable CAS 553-70-8 / PRESERVATIVE

Magnesium Benzoate is a key ingredient utilized in precision skincare as an antimicrobial preservative. It effectively protects formulations from microbial contamination, ensuring product stability and safety throughout its use. Its water-soluble nature makes it highly suitable for incorporation into a wide range of aqueous cosmetic systems.

Summary

Preservative

Science

Mechanism of Action

This ingredient functions by inhibiting the proliferation of various microorganisms, including bacteria, yeasts, and molds, within cosmetic formulations. By disrupting microbial growth pathways, Magnesium Benzoate prevents spoilage, maintains product integrity, and extends the shelf life of water-containing skincare products.

Research

Clinical Evidence

Insufficient-data confidence
Effective range ≤0.5%
Optimal

0.5%

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Magnesium Benzoate is readily soluble in both water and alcohol, making it versatile for various formulation types. Its inclusion is particularly important in cosmetic products containing water to effectively prevent microbial spoilage and maintain product hygiene.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.5%
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Magnesium Benzoate's safety when used within current practices and concentrations in cosmetic formulations. European Union Cosmetics Regulation (EC) No. 1223/2009 approves the use of benzoic acid and its salts, including Magnesium Benzoate, as preservatives, permitting a maximum concentration of 0.5% (calculated as free acid).

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Magnesium Benzoate is a valuable ingredient, playing an indispensable role in safeguarding water-based skincare formulations against microbial contamination and ensuring product longevity.

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