• Derived from: Baking Soda
  • Pronunciation: \ˈsō-dē-əm \ metaˈsi-lə-ˌkāt\
  • Type: Naturally-derived

What Is Sodium metasilicate?

Sodium metasilicate is an inorganic salt that typically appears as a white powdered or flaked solid.[1,2]

What Does Sodium metasilicate Do in Our products?

Sodium metasilicate is a versatile ingredient that can be used as an adhesive, corrosion inhibitor, and sealant, among other things. It is often used in hair color and as a corrosion inhibitor in cosmetics; it also is used in shaving, bath, and oral hygiene products.[3,4,5] We use it as a detergent booster.[6] It is almost insoluble in cold water.[7]

Why Puracy Uses Sodium metasilicate

Sodium metasilicate helps remove organic matter during washing.[12] Whole Foods has deemed the ingredient acceptable in its body care and cleaning product quality standards.[13,14,15] The FDA has deemed sodium metasilicate as generally recognized as safe (GRAS) in food.[16] Studies show that the ingredient is a skin irritant but safe for use when formulated to avoid irritation.[17,18]

How Sodium metasilicate Is Made

Commercially, manufacturing sodium metasilicate starts with fusing silica sand with sodium carbonate, also known as soda ash.[8,9,10]



[1] Environmental Working Group
[2] U.S. National Library of Medicine
[3] Environmental Working Group
[4] U.S. National Library of Medicine
[5] Cosmeticsinfo.org
[6] U.S. National Library of Medicine
[7] U.S. National Library of Medicine
[9] U.S. National Library of Medicine
[10] Cosmeticsinfo.org
 [11] Personal Care Council 
[12] U.S. National Library of Medicine
[13] Whole Foods Market
[15] Whole Foods Market
[16] Food and Drug Administration 
[17] U.S. National Library of Medicine
[18] Personal Care Council 

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