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Formulation Guides

Preserved water-based system

Format type

Preserved aqueous system

Target pH

5.0–6.0

Suitable for

All water-based formulations requiring preservation.

What this formulation is

A water-based system designed with preservation, pH alignment, and ingredient compatibility in mind.

What this formulation delivers

Microbial protection in water-based systems
Extended product stability
Safe foundation for leave-on products
Essential formulation control

Before you begin

This formulation is designed as a starting point.

Small adjustments to ingredient levels will influence texture, absorption, and overall skin feel. Work within recommended usage ranges and adjust gradually.

Check ingredient compatibility, pH, and preservation once the full system is assembled.

Formulation approach

Recognise that all water-based systems require preservation
Select a broad-spectrum preservative
Use within recommended usage levels
Ensure compatibility with formulation pH
Mix preservative at correct stage

Example formulation

Water (qs to 100%)
Phenoxyethanol (and) Caprylyl Glycol- 0.8–1.0%

Notes

Preservation is essential in any water-containing formulation. Always confirm compatibility with pH and formulation system.

These formulations are provided as examples to support your own development. They are starting points, not finished systems.

Ingredients

Ingredients to build this formulation

Explore the ingredients referenced in this formulation guide.

Shop all ingredients

Phenoxyethanol & Caprylyl Glycol Preservative

50 g From $14.95