Sourcing and specification of Willow CO2 extract
Produced in England from Salix alba by supercritical fluid extraction with natural carbon dioxide, the oily liquid contains no solvent residues or heavy metals. INCI lists Willow (Salix alba) CO2 Extract. CO2 Extracts of this grade are selected by laboratories for consistent active content including leucanthocyanin purpurinidin, alicortin, lignin, organic acids, tannin and salicin. The 5 g pack serves both pilot batches and formulation trials.
Technical parameters for B2B formulation
Fat-soluble character allows direct addition to the oil phase at 0,01-0,2 percent. Recommended temperature stays below 40 degrees Celsius. Product is purchased as botanical raw material for dietary supplements, functional beverages, confectionery items and food blends by manufacturers worldwide. Willow CO2 extract 100 g offers larger volumes for scale-up.
Use in cosmetic laboratory work
Formulators incorporate the extract into creams, serums, hair balms and sun-care bases. It supports antioxidant performance and scalp toning in rinse-off and leave-on products. Private label producers and contract manufacturers value its clean profile for international markets. Additional sourcing options appear in Botanical Extracts for comprehensive formulation development.
Example supplement blend formulation
Combine 99,8 percent carrier oil with 0,15 percent Willow CO2 extract and 0,05 percent mixed tocopherols. Blend at 35 degrees Celsius until uniform, then fill into amber containers. The mixture serves as an intermediate for dietary supplement capsules or functional oil drops.
Stability and storage guidelines
Keep tightly closed in a cool dark place. Shelf life extends to November 2028 under proper conditions. Avoid exposure to heat and light to maintain active integrity.
Compatibility notes
The extract integrates readily with other lipophilic botanical extracts and does not require additional solubilisers.
Frequently asked questions
What is the recommended input level for food applications?
Typical dosage ranges from 0,01 to 0,2 percent depending on the final matrix and regulatory requirements.
Is the material suitable for vegan supplement lines?
Yes, the CO2 extraction uses only plant material and natural carbon dioxide.
Can it be combined with water-based phases?
Direct addition requires an oil phase; pre-dispersion in a suitable emollient is advised for emulsions.