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INGREDIENT DICTIONARY

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Phenoxyethanol & Caprylyl Glycol Preservative Blend

INCI: Phenoxyethanol (and) Caprylyl Glycol (and) Sorbic Acid
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A preservative blend used to protect cosmetic formulations from microbial growth. 

What is Phenoxyethanol & Caprylyl Glycol Preservative Blend & why is it used?

Used to prevent microbial contamination and support product stability.

QUALITY MATTERS

Why specification quality matters

A balanced preservative system with controlled composition and low impurity
levels.

Designed to provide consistent antimicrobial performance across a wide range of cosmetic formulations.

Solubility Water soluble
Primary function Additive
Use level 0.5–1.5%

Behaviour in formulations

Functions as a broad-spectrum antimicrobial system, helping to inhibit bacterial, yeast, and mould growth.

Caprylyl glycol enhances preservative efficacy while also contributing to formulation stability. Sorbic acid supports antifungal performance.

Sensory notes

Minimal impact on formulation sensory at typical use levels.

Formulation considerations

PROCESSING

Add during cool-down phase (below 40°C) with mixing until uniform. 

COMPATIBILITY

Compatible with most cosmetic ingredients. Works well in water-based and emulsion systems.

pH
Effective across a broad pH range, though performance is enhanced in slightly acidic systems.
FORMULATION EXAMPLES

Serum

  • Preservative: 0.8–1.0%
  • Water phase

Cream

  • Preservative: 0.8–1.2%
  • Emulsion system

 Cleanser

  • Preservative: 0.5–1.0%
  • Surfactant system

Use level considerations

Recommended range 0.5–1.5%
Suggested starting level 0.8–1.0%%

This blend is typically used at 0.5–1.5% depending on formulation type and water activity.

At ~1%, it provides effective broad-spectrum preservation in most cosmetic systems.

Formulation summary

A balanced preservative system designed for broad cosmetic application.

Quality notes

A balanced preservative system with controlled composition and low impurity
levels.

Designed to provide consistent antimicrobial performance across a wide range of cosmetic formulations.

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