- Derived from: Plants
- Pronunciation: \ˈsō-dē-əm\ ˈglü-kə-ˌnāt\
- Type: Naturally-derived
- Other names: Gluconolactone
What Is Sodium Gluconate?
Sodium gluconate (also called gluconolactone) is a naturally-occurring sodium salt of gluconic acid.
How Sodium Gluconate Is Made
Manufacturing commercial sodium gluconate involves neutralizing gluconic acid with a sodium base or by acidifying calcium gluconate with sulfuric acid, filtering the product and neutralizing the result with a sodium base. Other methods involve continuous neutralization of gluconic acid formed during submerged culture fermentation.
Sodium Gluconate Uses
Sodium gluconate is a skin-conditioning agent and a chelating agent (a substance that improves foaming in hard water). You can often find sodium gluconate in soap, sunscreen, shampoo, toothpaste, hair products, makeup, and a variety of other personal care products.
We also use it as a softening agent in Puracy laundry detergents.
Is Sodium Gluconate Safe?
Whole Foods has deemed the ingredient acceptable in its body care quality standards. The National Institutes of Health report that the ingredient is not a skin or eye irritant. [1,6]
 U.S. National Library of Medicine
 R. H. Blom, V. F. Pfeifer, A. J. Moyer, (1952) “Sodium gluconate production, fermentation with Aspergillus niger” Inudstrial Engineering and Chemistry 44 (2), pp 435–440
 Environmental Working Group
 Whole Foods Market