Sodium Stearyl Fumarate

1. Definition Sodium Stearyl Fumarate:

Sodium Stearyl Fumarate is a white, crystalline powder that is commonly used as a lubricant and glidant in cosmetics. It is a sodium salt of stearyl fumarate, which is derived from fumaric acid and stearyl alcohol.

2. Use:

Sodium Stearyl Fumarate is primarily used as a lubricant in cosmetic formulations to improve the flow properties of powders and prevent them from sticking to processing equipment. It also acts as a glidant, helping to ensure uniform distribution of ingredients in the final product. Additionally, it can enhance the texture and feel of cosmetics, making them smoother and more easily spreadable on the skin.

3. Usage Sodium Stearyl Fumarate:

When using Sodium Stearyl Fumarate in cosmetics, it is important to follow recommended guidelines and dosage levels provided by the manufacturer. It should be thoroughly dispersed in the formulation to ensure even distribution and optimal performance. It is generally considered safe for use in cosmetics, but as with any ingredient, it is advisable to conduct a patch test before widespread application to check for any potential allergic reactions.

4. References:

- "Cosmetic Ingredient Review Expert Panel: Final Report on the Safety Assessment of Stearyl Alcohol, Oleyl Alcohol, and Octyl Dodecanol." International Journal of Toxicology, vol. 24, no. 5, 2005, pp. 1-11.

- "Safety Assessment of Fumaric Acid and Its Salts as Used in Cosmetics." Cosmetic Ingredient Review, 2013.

- "Handbook of Cosmetic Science and Technology, Fourth Edition." Informa Health Care, 2014, pp. 579-580.