How we scored it
Where it comes from
Jojoba Oil is expressed or solvent-extracted from the seeds of the Simmondsia chinensis shrub. It is used essentially as harvested, at most lightly refined, with no petrochemical feedstock involved.
Jojoba oil is not synthesized in an industrial chemical process but rather extracted from the seeds of the Simmondsia chinensis plant. The extraction process typically involves mechanical pressing or solvent extraction to yield the liquid wax ester.
Mechanical pressing, often referred to as cold pressing, involves crushing the seeds and applying pressure to release the oil. This method is preferred for high-quality, virgin jojoba oil as it avoids the use of solvents and preserves the natural properties of the oil. The resulting crude oil is then filtered to remove solid impurities.
Solvent extraction is another method where a solvent, such as hexane, is used to dissolve the oil from the crushed seeds. After extraction, the solvent is evaporated and recovered, leaving behind the jojoba oil. This method can yield a higher amount of oil but may require additional purification steps to remove residual solvent and other impurities.
Regardless of the extraction method, the crude jojoba oil is typically refined through processes like degumming, neutralization, bleaching, and deodorization to remove free fatty acids, pigments, and volatile compounds, ensuring a stable and aesthetically pleasing product for cosmetic applications. The final product is a liquid wax ester, primarily composed of long-chain fatty alcohols esterified with long-chain fatty acids.
In plain English
Jojoba oil is a unique liquid wax ester that comes from the seeds of the jojoba plant, a desert shrub. Unlike most plant oils which are triglycerides, jojoba oil is structurally very similar to human sebum, the natural oil our skin produces. This similarity allows it to be readily absorbed and recognized by the skin, making it an excellent moisturizer and conditioner.
It's extracted from the seeds through pressing or solvent methods, and then purified to create a stable, clear oil. Because it's derived entirely from a plant source, it's considered 100% natural and renewable, aligning with the principles of natural ingredient standards.
CosIng definition: Simmondsia Chinensis Seed Oil is the fixed oil expressed or extracted from seeds of the desert shrub, Jojoba, Simmondsia chinensis, Buxaceae
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2JOJOBA OIL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SIMMONDSIA CHINENSIS SEED OIL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SIMMONDSIA%20CHINENSIS%20SEED%20OIL