Castanea Crenata Shell Extract ●
TL;DR. This ingredient is primarily used as an antioxidant and skin-conditioning botanical extract. It can also add a mild astringent feel because its phenolic compounds interact with proteins on the skin surface.
What does Castanea Crenata Shell Extract do in a cosmetic formula?
This ingredient is primarily used as an antioxidant and skin-conditioning botanical extract. It can also add a mild astringent feel because its phenolic compounds interact with proteins on the skin surface.
Is Castanea Crenata Shell Extract clean?
From a clean beauty perspective, this ingredient is generally well accepted and has no major restricted-list profile. As with many botanical extracts, tolerability depends on concentration, solvent system, and preservation, especially for reactive or sensitive skin.
Is Castanea Crenata Shell Extract sustainable?
This ingredient is plant-derived and can make use of an agricultural byproduct, which is a positive sourcing signal. Its phenolic components are expected to be biodegradable, while the overall footprint depends on extraction solvent, drying energy, and supplier practices.
Is Castanea Crenata Shell Extract COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic when produced using approved extraction methods and allowed solvents or preservatives. It fits Green Chemistry principles reasonably well when sourced renewably, extracted with water, ethanol, or glycerin, and processed without high-impact solvents.
How does Castanea Crenata Shell Extract work chemically?
This material is a complex extract rich in tannins, flavonoids, phenolic acids, and other polar phytochemicals rather than a single defined molecule. It is typically used at low percentages as supplied, often around 0.1 to 5%, and is best formulated with attention to color shift, metal-ion interactions, and oxidation control.
Last updated 2026-05-13