Question 1

What does Phenoxyethanol [+/- May Contain: CI 77491 do in a cosmetic formula?

Accepted Answer

This ingredient is primarily a preservative, used to protect water-containing formulas from bacterial growth. In tinted products, any listed may-contain colorant serves shade adjustment rather than preservation.

Question 2

Is Phenoxyethanol [+/- May Contain: CI 77491 clean?

Accepted Answer

From a clean-beauty perspective, it is accepted by many retailer standards with concentration limits, but it has friction in stricter natural frameworks. It is generally well tolerated at regulated levels, though eye-area use, compromised skin barriers, and high total preservative load can raise irritation potential.

Question 3

Is Phenoxyethanol [+/- May Contain: CI 77491 sustainable?

Accepted Answer

This material is typically synthetic and petroleum-derived, which weakens its renewable-sourcing profile. It is considered readily biodegradable and has low bioaccumulation potential, so its main sustainability drawback is feedstock origin rather than long-term environmental persistence.

Question 4

Is Phenoxyethanol [+/- May Contain: CI 77491 COSMOS-approved?

Accepted Answer

It is not permitted under COSMOS organic or COSMOS natural certification. Its Green Chemistry fit is mixed, since it is an effective low-dose preservative with biodegradability, but it relies on synthetic petrochemical inputs and conventional processing.

Question 5

How does Phenoxyethanol [+/- May Contain: CI 77491 work chemically?

Accepted Answer

The molecule is an aromatic glycol ether with both water and oil compatibility, which helps it distribute through emulsions and support preservation in the aqueous phase. Typical use is about 0.5 to 1.0%, with a 1% maximum in many regulations, and it is commonly paired with organic acids, chelators, or preservative boosters to strengthen yeast and mold coverage.