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SODIUM METHYLPARABEN

Last update on Aug 27, 2025

Sodium Methylparaben is a sodium salt of methylparaben and is used in cosmetics as a synthetic preservative. Methylparaben is one of the most commonly used parabens in the cosmetic industry, and its neutralization with sodium increases its water solubility. Its antimicrobial properties inhibit the growth of bacteria and yeasts in water-based formulations, increasing their shelf life significantly. Sodium Methylparaben does not offer any direct benefits to skin or hair, but ensures the safety and longevity of cosmetic products. In its raw form, it appears as a white crystalline powder and is incorporated into a wide range of water-based products such as moisturizers, lotions, cleansers, shampoos, conditioners, serums, and deodorants. The chemical formula of Sodium Methylparaben is C₈H₇NaO₃.

CAS Number: 5026-62-0Chem/IUPAC Name: Sodium 4-(methoxycarbonyl)phenolateEINECS/ELINCS No: 225-714-1COSING REF No: 37968

Products with SODIUM METHYLPARABEN

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Paridol MNA

by Jan Dekker

INCI: SODIUM METHYLPARABEN

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PHYTODERMINA LIFTING

by I.R.A. Istituto Ricerche Applicate

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Methyl Paraoxybenzoate Sodium Salt

by Huwell Chemicals

INCI: SODIUM METHYLPARABEN

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What is SODIUM METHYLPARABEN used for?

Sodium Methylparaben does not affect skin or hair in any way, but is used in cosmetics and personal care products to increase their shelf life. This water-soluble preservative prevents the growth of bacteria, yeast, and mold - maintaining the safety and stability of formulations without altering their texture or appearance. To provide a broad-spectrum antimicrobial effect, Sodium Methylparaben is often combined with other preservatives like phenoxyethanol. Additionally, its low cost and easy sourcing make it a widely used ingredient in both rinse-off and leave-on cosmetics.

Origin

Sodium Methylparaben is made synthetically by first esterifying p-hydroxybenzoic acid with methanol. The resulting methylparaben is then neutralized with sodium hydroxide to form Sodium Methylparaben. The final ingredient is filtered and crystallized to make it suitable for cosmetic use.

What does SODIUM METHYLPARABEN do in a formulation?

PRESERVATIVE|

ANTIMICROBIAL

Safety Profile

Sodium Methylparaben is safe for topical use at low concentrations. It is generally non-irritating and non-sensitizing. However, it is important to source good-quality, impurity-free, and cosmetic-grade Sodium Methylparaben for use in cosmetics. Mild allergies are possible when using on broken or sensitive skin. Patch tests are recommended when using the ingredient for the first time.