preservativesStandard

Sodium Anisate

Sodium p-Anisate

preservativeantimicrobial
CAS Number:536-45-8

INCI Name

Sodium Anisate

Functions

2 Roles

Sustainability

8/10

Category

preservatives

What It Does

Sodium Anisate is the sodium salt of anisic acid, derived from anise or fennel essential oils through natural fermentation or extraction processes. It serves as a natural, eco-certified preservative booster that works synergistically with other preservation systems, particularly effective against bacteria and molds in the pH range of 4-6.5. Formulators favor it in natural and organic cosmetics as it meets strict certification requirements (COSMOS, NaTrue) while providing gentle antimicrobial activity without the sensitization concerns of traditional preservatives like parabens or formaldehyde releasers.

Prevents bacterial contamination
Extends product shelf life
Ensures formula safety over time
Maintains product efficacy

Technical Properties

pH Range

4.0-6.5

Optimal working range

Ionic Charge

anionic

Molecular charge type

Ingredient Compatibility

Works Well With

nonionic surfactantshumectantsmost emollientsplant extractsother natural preservatives

Avoid Combining

strong cationic ingredientshighly acidic formulations below pH 3.5
Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

8/10

Biodegradability

readily biodegradable

Source

plant-derived

Feedstock

anise or fennel essential oils

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