Question 1

What does PHENOXYETHANOL[1][6] do in a cosmetic formula?

Accepted Answer

This ingredient is a broad-spectrum preservative used to protect water-containing formulas from microbial growth. It is especially useful against bacteria and is often paired with other preservative boosters for broader coverage.

Question 2

Is PHENOXYETHANOL[1][6] clean?

Accepted Answer

From a clean-beauty view, this ingredient is accepted by many retailers when used within the common 1% cap, but it is often flagged because it is synthetic and can sting or irritate some sensitive or eye-area users. It is not a fragrance allergen, but it does carry more clean-standard friction than simpler food-grade acids or alcohols.

Question 3

Is PHENOXYETHANOL[1][6] sustainable?

Accepted Answer

This material is typically made from petrochemical feedstocks rather than renewable plant sources. It is considered biodegradable and is not a major bioaccumulation concern, but its fossil-based sourcing keeps its sustainability profile mixed.

Question 4

Is PHENOXYETHANOL[1][6] COSMOS-approved?

Accepted Answer

It is not permitted as a preservative in COSMOS-natural or COSMOS-organic certified formulas, so alignment is limited despite effective low-dose use. From a Green Chemistry lens, its drawbacks are synthetic feedstocks, while its strengths are low use level, formula stability, and biodegradability.

Question 5

How does PHENOXYETHANOL[1][6] work chemically?

Accepted Answer

The molecule is an aromatic ether alcohol with moderate water solubility, good oil-water partitioning, and broad pH stability, which makes it flexible in emulsions, gels, and surfactant systems. Typical use is about 0.3% to 1.0%, with a 1.0% maximum in the EU, and it is often combined with chelators, organic acids, or multifunctional glycols to improve yeast and mold coverage.