Oregano ●
TL;DR. This ingredient is used mainly as a botanical fragrance, masking agent, and skin-conditioning extract. In some formulas, it also supports the preservation system because its aromatic phenolic compounds have antimicrobial activity.
What does Oregano do in a cosmetic formula?
This ingredient is used mainly as a botanical fragrance, masking agent, and skin-conditioning extract. In some formulas, it also supports the preservation system because its aromatic phenolic compounds have antimicrobial activity.
Is Oregano clean?
From a clean-beauty perspective, this ingredient is acceptable but not friction-free. Its fragrant components can be sensitizing, especially in leave-on products or at higher levels, so brands often treat it like a high-potency aromatic material rather than a neutral botanical.
Is Oregano sustainable?
This ingredient is plant-derived and generally biodegradable. Its sustainability profile depends on agricultural practices, water use, and whether the material is produced as a concentrated volatile fraction, which can require more plant input and distillation energy.
Is Oregano COSMOS-approved?
It can be permitted under COSMOS-natural and COSMOS-organic standards when sourced and processed according to the standard, including compliant extraction methods and documentation. Its Green Chemistry fit is strongest when it comes from renewable cultivation and low-residue processing, though volatile aromatic fractions still carry allergen-labeling and concentration considerations.
How does Oregano work chemically?
This material is rich in aromatic terpenes and phenolic monoterpenes such as carvacrol and thymol, which explain its strong scent profile and antimicrobial behavior. Typical use is low, often well below 1% in leave-on formulas, and terpene-rich fractions need protection from air, heat, and light because oxidation can increase irritation and sensitization potential.
Last updated 2026-05-13