CO2 Supercritical and Subcritical Extracts
CO2s With Standardized Actives | Fragrance and Perfume Test Strips
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.
[Source: Mark Webb, Course: CO2 Extracts v1.3. October 21-22, 2017.]
Basing your assessment of an aromatic strictly by how it smells out of the bottle can be problematic. When you inhale the oil directly from the bottle, the thin bottle neck can prevent the aroma from fully divulging its complexity and its full palette of aromatic notes.
Fragrance and Perfume Test Strips are ideally suited for evaluating the aroma of essential oils, CO2 extracts, absolutes, fragrance oils and other aromatics. They're also wonderful for evaluating blends and fragrances that you create for personal care or aromatherapy formulations.
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