Certified Organic Aromatic CO2 Selects | Conventional Aromatic CO2 Selects | Certified Organic Aromatic CO2 Totals
Conventional Aromatic CO2 Totals | Certified Organic Fixed CO2 Totals (Carrier/Vegetable Oils)
Conventional Fixed CO2 Totals (Carrier/Vegetable Oils) | CO2s With Standardized Actives
We are pleased to offer a large and growing selection of superior quality, certified organic and conventional CO2 Extracts that are well suited for use within aromatherapy, personal care and cosmetic applications.
CO2 Supercritical Extracts, also known as Carbon Dioxide Extracts, CO2 Extracts or simply CO2s, are extracted using carbon dioxide as a solvent. Using equipment specifically designed for CO2 extraction, carbon dioxide can be carefully pressurized and converted into a supercritical, liquid-like state. In this state, the carbon dioxide becomes a safe and effective solvent that enables all of the desirable constituents of the botanical material to be collected without the risk of heat degradation or exposure to potentially toxic solvents. Once the extraction is complete, the carbon dioxide is allowed to return to its natural gaseous state, leaving behind only the pure extract.
- CO2 Selects:
CO2 Selects are typically extracted at lower pressure and typically contain only the more volatile CO2-soluble components. The heavier waxes, resins, and color compounds are not present in CO2 Selects. CO2 Selects resemble steam distilled essential oils in composition and beneficial applications, however, they typically offer a longer shelf life and may contain more volatile components that cannot be extracted using steam distillation.
CO2 Totals are typically extracted at higher pressure. CO2 Totals generally contain both volatile and non-volatile CO2-soluble components of the botanical. Depending on the plant part used, the aromatics, heavier waxes, fatty acids, resins and color compounds may be present in the extract. CO2 Totals are generally thicker in consistency but are soluble in lipophilic fluids such as essential oils and vegetable oils. Due to their viscosity, some CO2 Totals may need gentle warming. CO2 Extraction is used to produce superior quality lipids with greater stability, longer shelf life and often greater efficacy than their cold pressed counterparts.
CO2 Extract Benefits:
CO2 Extracts are closer in composition to the fresh botanical than are oils produced via other methods.
Steam distillation is only able to collect molecules of the lightest weight. CO2 extraction allows a larger range of constituents to be collected.
CO2 Extracts are more stable and possess a longer shelf life than their essential oil, absolute and vegetable oil counterparts.
Low temperatures are maintained during the CO2 supercritical extraction process. The production of essential oils via steam or hydro-distillation requires the use of heat that can cause degradation or alteration of the natural aromatic molecules present in a botanical. Likewise, cold pressing and expeller pressing do result in the oil being exposed to heat.
Carbon dioxide (CO2), in its supercritical state, acts as a solvent that is far superior to the solvents used to produce aromatic absolutes or solvent extracted lipids. Carbon dioxide is safe, and no trace of CO2 remains after the extraction is complete.
[Source: Mark Webb, Course: CO2 Extracts v1.3. October 21-22, 2017.]