Gluconolactone, Sodium Benzoate (Gluconolactone and Sodium Benzoate Blend) - preservative, humectant, ph adjuster

INCI Name

Gluconolactone, Sodi...

Functions

3 Roles

Sustainability

7/10

What It Does

This combination pairs gluconolactone, a polyhydroxy acid derived from glucose fermentation, with sodium benzoate, a widely-used preservative salt. Gluconolactone provides gentle exfoliation and moisture-binding properties while creating an acidic environment that enhances sodium benzoate's antimicrobial efficacy. Formulators favor this blend because it offers dual benefits of preservation and skin conditioning in a single ingredient system, particularly effective in pH-balanced formulations.

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

Viscosity Effect

neutral

Impact on formula thickness

Ingredient Compatibility

Known Interactions

PROBIOTICSIncompatibleDegradation

Sodium Benzoate is an antimicrobial preservative that will kill probiotic organisms. Never use antimicrobial preservatives in probiotic formulations.

ASCORBIC ACIDUse CautionDegradation

Ascorbic Acid + Sodium Benzoate can form benzene (a carcinogen) in acidic conditions with heat or UV exposure. This is a well-documented FDA concern in beverages. Use alternative preservatives or ensure pH > 4 and avoid metal catalysts.

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