Phnosyethanol ●
TL;DR. This ingredient is used primarily as a preservative, helping protect water-containing formulas from microbial growth. It is often paired with organic acids or booster preservatives to broaden coverage.
What does Phnosyethanol do in a cosmetic formula?
This ingredient is used primarily as a preservative, helping protect water-containing formulas from microbial growth. It is often paired with organic acids or booster preservatives to broaden coverage.
Is Phnosyethanol clean?
Clean-beauty standards treat this ingredient as acceptable with limits, not as a natural-positioning preservative. It can be irritating for some users, especially near the eyes or on compromised skin, and is commonly capped at 1% in finished products.
Is Phnosyethanol sustainable?
This material is typically synthetically made from petrochemical feedstocks, so its sourcing is not strongly renewable. It has low bioaccumulation potential and is expected to biodegrade under wastewater-treatment conditions.
Is Phnosyethanol COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. From a Green Chemistry view, its profile is mixed, with effective low-dose preservation and low bioaccumulation, but synthetic petrochemical sourcing and limited natural-standard alignment.
How does Phnosyethanol work chemically?
The molecule is an aromatic ether alcohol, which gives it both water-phase compatibility and membrane-disrupting preservative activity. Typical use is up to 1% in many regulatory systems, with broad pH stability and frequent pairing with chelators or preservative boosters for stronger system performance.
Last updated 2026-08-17