Caprylhydroxamic Acid ●
TL;DR. This ingredient is primarily used as a preservation booster and antimicrobial stabilizer. It also binds metal ions, which helps support formula stability and preservative performance.
What does Caprylhydroxamic Acid do in a cosmetic formula?
This ingredient is primarily used as a preservation booster and antimicrobial stabilizer. It also binds metal ions, which helps support formula stability and preservative performance.
Is Caprylhydroxamic Acid clean?
Clean-beauty frameworks generally treat it as acceptable when used within standard cosmetic limits. It has low odor, low typical irritation potential, and no major restricted-list friction compared with many conventional preservatives.
Is Caprylhydroxamic Acid sustainable?
This material is commonly made from C8 fatty acid feedstocks that may be coconut or palm-kernel derived, so sourcing traceability matters. It is used at low levels and is generally viewed as biodegradable with low persistence concern.
Is Caprylhydroxamic Acid COSMOS-approved?
It is permitted in COSMOS-style natural formulations when the raw material and manufacturing route meet the standard’s criteria. Its Green Chemistry profile is strongest when based on renewable fatty acid feedstocks, though it still requires synthetic conversion chemistry.
How does Caprylhydroxamic Acid work chemically?
The molecule pairs an eight-carbon fatty chain with an N-hydroxy amide group that chelates iron and helps limit microbial growth pathways. Typical use levels are about 0.05% to 0.3%, often alongside glycols or other preservative boosters, and it is commonly used in mildly acidic to near-neutral formulas.
Last updated 2026-05-13