ethylparaben[3] ●
TL;DR. This ingredient is a preservative used to limit bacterial, yeast, and mold growth in water-containing formulas. It is often paired with other preservative types to broaden coverage and reduce total preservative load.
What does ethylparaben[3] do in a cosmetic formula?
This ingredient is a preservative used to limit bacterial, yeast, and mold growth in water-containing formulas. It is often paired with other preservative types to broaden coverage and reduce total preservative load.
Is ethylparaben[3] clean?
From a clean-beauty perspective, this ingredient has strong regulatory safety support at permitted levels but is excluded by many retailer and brand restricted lists because of endocrine-activity debate and category perception. Irritation and allergy rates are generally low, but sensitization can occur in a small subset of users.
Is ethylparaben[3] sustainable?
This material is typically made by synthetic chemical processing, often from petrochemical-derived feedstocks, though it is used at very low concentrations. It is generally considered biodegradable and is not known as a major bioaccumulative material in rinse-off or leave-on use levels.
Is ethylparaben[3] COSMOS-approved?
This ingredient is not permitted under COSMOS-natural or COSMOS-organic standards because it is outside the allowed preservative list. Its Green Chemistry profile is mixed, with low use levels and biodegradability on one side, but nonrenewable feedstock dependence and clean-standard friction on the other.
How does ethylparaben[3] work chemically?
The molecule is an aromatic ester with a phenolic hydroxyl group, giving it antimicrobial activity that is strongest in the acidic to mildly acidic range. Typical cosmetic use is up to about 0.4% alone and 0.8% in blends where regulations allow, and it is more effective when the formula pH keeps a meaningful fraction in the unionized form.
Last updated 2026-05-13