Chemistry:Emulsifying wax
Emulsifying wax is a cosmetic emulsifying ingredient. The ingredient name is often followed by the initials NF, indicating that it conforms to the specifications of the National Formulary. Emulsifying wax is created when a wax material (either a vegetable wax of some kind or a petroleum-based wax) is treated with a detergent (typically sodium dodecyl sulfate or polysorbates) to cause it to make oil and water bind together into a smooth emulsion. It is a white waxy solid with a low fatty alcohol odor.
According to the United States Pharmacopoeia - National Formulary (USP-NF), the ingredients for emulsifying wax NF are cetearyl alcohol and a polyoxyethylene derivative of a fatty acid ester of sorbitan (a polysorbate).[1]
In a cosmetic product, if the emulsifying wax used meets the standards for the National Formulary, it may be listed in the ingredient declaration by the term "emulsifying wax NF".[2] Otherwise, the emulsifier is considered a blended ingredient and the individual components must be listed individually in the ingredient declaration, placed appropriately in descending order of predominance in the whole.[3]
References
- ↑ "NF Monographs: Emulsifying Wax". http://www.pharmacopeia.cn/v29240/usp29nf24s0_m88980.html.
- ↑ "Designation of ingredients.". https://www.gpo.gov/fdsys/pkg/CFR-2014-title21-vol7/xml/CFR-2014-title21-vol7-sec701-3.xml. Retrieved 5 March 2019.
- ↑ Nutrition, Center for Food Safety and Applied. "Labeling Regulations - Cosmetic Labeling Guide". https://www.fda.gov/cosmetics/labeling/regulations/ucm126444.htm#clgl3. Retrieved 5 March 2019.
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