INCI: Phenoxyethanol - Also known as: Ethylene Glycol Monophenyl Ether, 2-Phenoxyethanol, Phenoxetol

QUICK FACTS

What is Phenoxyethanol?

Phenoxyethanol is a synthetic aromatic glycol ether widely used as a preservative in cosmetic and personal care formulations. It has been a staple of cosmetic preservation since the 1950s, with one of the most extensive safety dossiers of any cosmetic preservative in use today. Its mechanism of action as a preservative is well-understood: it disrupts bacterial and fungal cell membrane integrity at low concentrations, preventing microbial proliferation within water-containing formulas without the sensitization potential associated with older preservative classes such as parabens or formaldehyde-releasing agents.

Phenoxyethanol's regulatory approval is global and comprehensive. It is approved for use in cosmetics by the EU (up to 1%), the FDA, Health Canada, and regulatory bodies across Asia and Australia. The EU Scientific Committee on Consumer Safety (SCCS) has reviewed its safety profile multiple times and confirmed its appropriateness at the standard cosmetic use level. It is used specifically to protect formula integrity rather than to produce any active skin benefit.

At Sweet Chemistry, phenoxyethanol is part of a multi-preservative system in the three water-containing formulas - combined with ethylhexylglycerin and caprylyl glycol to create a broad-spectrum preservation approach that uses lower concentrations of each component than any single preservative would require alone. The Oil-Serum does not require phenoxyethanol, as its waterless formulation does not support microbial growth.

What does it do for skin?

Phenoxyethanol's contribution to skincare is structural rather than active: it protects the formula itself. In any water-based cosmetic product, microbial contamination is a genuine concern - water is a growth medium for bacteria, yeast, and mold. Without effective preservation, a formula containing potent actives like Matrikynes® peptides, ceramides, and niacinamide would degrade within days of exposure to the environment. Phenoxyethanol prevents this, ensuring that every active ingredient remains stable and effective from the first application to the last.

In combination with ethylhexylglycerin and caprylyl glycol - the two co-preservatives in the Sweet Chemistry system - phenoxyethanol operates as part of a synergistic preservation approach. Ethylhexylglycerin works by reducing the surface tension of bacterial cell membranes, potentiating phenoxyethanol's antimicrobial action at lower concentrations than either would achieve alone. Caprylyl glycol adds additional microbial suppression and mild skin-conditioning properties. Together, this three-component system provides broad-spectrum protection across bacteria, yeast, and mold without reliance on any single preservative at a high concentration.

The Sweet Chemistry water-based formulas are also housed in the world's first ultralight glass airless system, which minimizes air and environmental contamination with each use - reducing the overall preservation burden and supporting the long-term stability of every active in the formula.

FOUND IN

In 3 Formulas

Phenoxyethanol is part of the preservation system in Sweet Chemistry's three water-based formulas. It is absent from the Oil-Serum by design - a waterless formula does not require traditional preservation.

Nourishment - All Skin Types

Barrier Repairing Hydra-Serum Phenoxyethanol (Preservation System) - 1.0 oz / 30 ml

A 40%-active, water-based emulsion delivering 3% Matrikynes® peptides, 5% niacinamide, 3% ceramides, and 2% seaweed glycan in the world's first ultralight glass airless system. Phenoxyethanol protects the integrity of these actives throughout the product's use cycle.

Hydration - Dry to Normal

Elasticity Reinforcing Hydra-Cream Phenoxyethanol (Preservation System) - 1.7 oz / 50 ml

A 40%-active cream with 3% Matrikynes® peptides, 2% THD ascorbate, and a full ceramide barrier complex. The preservation system ensures formula stability across the product's full shelf life.

Hydration - Dry to Dehydrated

Elasticity Reinforcing Lipid-Cream Phenoxyethanol (Preservation System) - 1.7 oz / 50 ml

The Lipid-Cream's 46%-active formula is preserved by the same three-component system, maintaining the integrity of its peptide, ceramide, vitamin C, and emollient actives throughout use.

WORKS TOGETHER WITH

Co-Preservative Ethylhexylglycerin

INCI: Ethylhexylglycerin.

A glyceryl ether that reduces bacterial surface tension, potentiating phenoxyethanol's action at lower overall concentrations. Synergy Note: Ethylhexylglycerin and phenoxyethanol form the core of Sweet Chemistry's multi-preservative system - together they achieve broader antimicrobial coverage at lower individual concentrations than either could provide alone.

Co-Preservative Caprylyl Glycol

INCI: Caprylyl Glycol.

A glycol that adds complementary antimicrobial support alongside phenoxyethanol and ethylhexylglycerin, completing the three-component preservation system. Synergy Note: The three-preservative system minimizes the concentration of each individual component needed, reducing the overall preservative load while maintaining full broad-spectrum protection.

Packaging Innovation Glass Airless

System Sweet Chemistry's formulas are housed in the world's first ultralight glass airless system, which limits environmental contamination with each pump - reducing the microbial challenge that the preservation system must manage. Synergy Note: The airless delivery system and the multi-preservative approach are complementary - the packaging reduces contamination at the point of use, while phenoxyethanol protects against any microbial growth within the formula throughout its shelf life.

ECM Peptide Complex Matrikynes® Bone Peptides

INCI: Hydrolyzed Cow Bone Extract.

At 3% in all four formulas, associated with improvements in the appearance of skin density and aging signs. Synergy Note: Phenoxyethanol's role as a preservative is what makes it possible to formulate Matrikynes® peptides at 3% in a stable, water-based environment - without effective preservation, the peptide complex would degrade rapidly.