Polygonum Tinctorium Leaf/Stem Extract ●
TL;DR. This ingredient is primarily used as a skin-conditioning botanical extract, adding antioxidant and soothing support to creams, serums, masks, and wash-off products. Depending on processing, it can also contribute a subtle natural tint.
What does Polygonum Tinctorium Leaf/Stem Extract do in a cosmetic formula?
This ingredient is primarily used as a skin-conditioning botanical extract, adding antioxidant and soothing support to creams, serums, masks, and wash-off products. Depending on processing, it can also contribute a subtle natural tint.
Is Polygonum Tinctorium Leaf/Stem Extract clean?
From a clean-beauty perspective, it is generally well accepted and not a common restricted-list concern. The main quality checks are botanical identity, pesticide and heavy-metal testing, residual solvent controls, and rare plant-related sensitivity.
Is Polygonum Tinctorium Leaf/Stem Extract sustainable?
This material is plant-derived and renewable, with a generally favorable biodegradability profile. Its sustainability depends on farming practices, extraction solvent choice, water use, and supplier traceability.
Is Polygonum Tinctorium Leaf/Stem Extract COSMOS-approved?
It can be permitted under COSMOS-natural and COSMOS-organic standards when the plant source, extraction solvents, and processing aids meet the standard. It fits Green Chemistry best when extracted with water, glycerin, ethanol, or other approved lower-impact solvents and supplied with transparent agricultural controls.
How does Polygonum Tinctorium Leaf/Stem Extract work chemically?
This is a complex botanical extract containing water-soluble and solvent-dependent plant metabolites such as polyphenols, flavonoids, sugars, minerals, and pigment compounds. Typical use levels are often around 0.1% to 5%, and formulators should protect aqueous versions with an appropriate preservative system while limiting unnecessary heat, light, and oxidation exposure.
Last updated 2026-05-13