• Derived from: molasses
  • Pronunciation: (\ˈsō-dē-əm\ \ˈsi-ˌtrāt\)
  • Type: Naturally-derived

What Is Sodium citrate?

Sodium citrate is a salt of citric acid. Citric acid is an organic acid that occurs naturally in plants and animals.[1] It occurs as colorless crystals or white powder, and is commonly found in citrus fruits, corn, and other foods.[2,3] Two ounces of orange juice has about 500 mg, according to the FDA.[4] Citric acid is an alpha-hydroxy acid and a beta-hydroxy acid.[5,6]

What Does Sodium citrate Do in Our products?

Sodium citrate is often used as a pH adjuster and water softener. It is common in liquid laundry detergent, though it is also often used in food and medical products.[7,8] In food, it helps control the acidity of ice cream, candy, jelly, and gelatin desserts.[9] Sodium citrate is also in dozens of personal care products, such as shampoo, conditioner, sunscreen, facial moisturizer, makeup, baby wipes, soap, and other products.[10]

Why Puracy Uses Sodium citrate

We use sodium citrate as a water softener and to adjust the acidity of products. The FDA has deemed the ingredient Generally Recognized as Safe, and Whole Foods has deemed the ingredient acceptable in its body care and cleaning product quality standards.[16,17,18] The Cosmetics Ingredient Review has also deemed the ingredient safe for use in cosmetic products.[19] Studies show the ingredient is not a skin irritant or sensitizer.[20,21]

How Sodium citrate Is Made

Sodium citrate production occurs by neutralizing citric acid with sodium hydroxide.[11] Citric acid may be produced from fruits or other foods, through yeast fermentation, and by solvent extraction.[12] Most large-scale production occurs by fermenting molasses or other sugar stocks with Aspergillus niger.[13] The liquid is separated by filtration, and the citric acid is separated by precipitation.[14] Sodium citrate is usually offered commercially as the white, crystalline trisodium citrate dihydrate.[15]



[1] Cosmeticsinfo.org
[2] Food and Drug Administration
[3] Cosmeticsinfo.org
[4] Food and Drug Administration
[5] Cosmeticsinfo.org
[6] American College of Allergy, Asthma & Immunology
[7] University of Michigan Health System
[8] Environmental Protection Agency
[9] Center for Science in the Public Interest
[10] Environmental Working Group
[11] U.S. Department of Agriculture
[12] Food and Drug Administration
[13] Personal Care Council
[14] U.S. Department of Agriculture
[15] U.S. Department of Agriculture
[16] Whole Foods Market
[17] Whole Foods Market
[18] Food and Drug Administration
[19] Personal Care Council
[20] Personal Care Council
[21] Lahti, A., “Nonimmunologic contract uticaria.” Acta Dermato-Venereologica Suppl. 1980;60(91):1-29.

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