The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 10279-57-9 / 1343-98-2 / 7631-86-9 / 112926-00-8 / 63231-67-4
Chem/IUPAC Name: Synthetic amorphous silicon dioxide
EINECS/ELINCS No: - / 215-683-2 / 231-545-4 / - / -
COSING REF No: 76428
Hydrated Silica is a form of silicon dioxide that is used in a number of personal care and cosmetic products. It provides mild abrasion properties that can exfoliate the face properly and aid in the removal of dead skin cells. Hydrated Silica can commonly be found in toothpaste, exfoliating body washes, and facial scrubs. It is also a thickening and viscosity-controlling agent that improves the feel and texture of the products that it is used in. The chemical formula of Hydrated Silica is H10O3Si.

What is HYDRATED SILICA used for?

Hydrated Silica is a very versatile ingredient and has many benefits to provide in the cosmetic and personal care industry. It is primarily found in toothpaste where it removes plaque and protects the teeth from damage.
  • Skin care: It works as an exfoliator and cleansing agent that removes dead skin cells and leaves the surface of the skin smoother and healthier. It is also used to enhance the spreadability and texture of the products
  • Cosmetic products: It is used in powders and foundations to help absorb excess oil and give a matte finish to the skin. In products like deodorants, it can be used to absorb moisture and control body odor
  • Hair care: It may be used in shampoos and conditioners to improve the texture of the products and to add volume and thickness to the shafts


Hydrated Silica is a mineral-based compound that is made by the reaction of silicon dioxide and water under high pressure and temperature. It appears as a fine powder that is white in color and odorless. Hydrated Silica is not silicone even though it is derived from silicon because during manufacturing the chemical properties of this ingredient change.

What does HYDRATED SILICA do in a formulation?

  • Abrasive
  • Absorbent
  • Cleansing
  • Viscosity controlling

Safety Profile of HYDRATED SILICA

Hydrated Silica is a safe ingredient and can be used up to concentrations of 50%. It has no known risks and is well tolerated by all skin types. However, a patch test should be performed before full usage of the product. Hydrated Silica can be considered vegan and halal as it is not derived from any animal-based sources.


HYDRATED SILICA Technical profile

Property Values
Melting Point 1610°C
pH 7.0
Solubility Dispersible in water
Viscosity High

Commercial Selection : Grades containing solely HYDRATED SILICA

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