Cystoseira Tamariscifolia Extract ●
TL;DR. This ingredient is used mainly as a skin-conditioning botanical extract, bringing antioxidant and soothing support from marine-derived polyphenols and polysaccharides. It may also add light humectant and texture benefits depending on the extraction medium.
What does Cystoseira Tamariscifolia Extract do in a cosmetic formula?
This ingredient is used mainly as a skin-conditioning botanical extract, bringing antioxidant and soothing support from marine-derived polyphenols and polysaccharides. It may also add light humectant and texture benefits depending on the extraction medium.
Is Cystoseira Tamariscifolia Extract clean?
From a clean-beauty perspective, it is generally well tolerated and not a common restricted-list concern. Quality depends on supplier controls for marine contaminants, iodine, and residual extraction solvents.
Is Cystoseira Tamariscifolia Extract sustainable?
This material comes from a renewable marine biomass source and is expected to be biodegradable in typical wastewater conditions. The main sustainability question is harvesting practice, with cultivated or responsibly managed sourcing preferred over unmanaged wild collection.
Is Cystoseira Tamariscifolia Extract COSMOS-approved?
It can be permitted under COSMOS-natural, and under COSMOS-organic when the biomass, extraction solvent, and processing route meet the standard. It fits Green Chemistry best when extracted with water, glycerin, or ethanol, using low-temperature processing and documented responsible sourcing.
How does Cystoseira Tamariscifolia Extract work chemically?
The molecule mix is not a single compound, but a complex extract containing sulfated polysaccharides, phlorotannins, minerals, and small amounts of pigments and other marine metabolites. Supplier blends are commonly used around 0.1% to 5% as supplied, with best compatibility in water-based systems and typical cosmetic pH ranges around 4 to 7.
Last updated 2026-05-13