Press release
August 22, 2019

Patented silica intended for sensitive teeth

  • SPHERILEX® 148: The perfect partner for sensitive toothpaste formulations

Evonik presents their newest silica technology SPHERILEX® 148. To ease the life of an increasingly large percentage of the world’s population experiencing gum and teeth sensitivity, Business Line Silica created a new grade of precipitated silica designed to benefit sensitive toothpaste formulations.

The flow of fluids through open dentin tubules allows external stimuli, e.g. cold, acid, etc., to reach the nerves in the tooth pulp tissue which can trigger a sensation of pain. With its matching round shape and precisely controlled smaller particle size, SPHERILEX® 148 has been shown to have an affinity to occlude dentin tubules. This naturally derived mineral product enhances Evonik’s existing portfolio of ZEODENT® and SPHERILEX® grades.

All silica oral care products are produced under the highest safety and quality standards. SPHERILEX® 148 meets USP-NF ‘Dental-Type Silica’ and EP ‘Silica, dental type’ monographs, and is listed as a “derived mineral ingredient” in the Annex D of ISO 16128-1 with the INCI name “Hydrated Silica”. All Oral Care SPHERILEX® grades conform to COSMOS as a non-organic raw material and are certified Pareve, Kosher, Kosher for Passover, and Halal.

Evonik is a leading global manufacturer of silica. In addition to the fumed silica AEROSIL® and the precipitated silica ULTRASIL®, SIPERNAT®, ZEODENT® and SPHERILEX®, Evonik also produces silica based matting agents under the brand name ACEMATT® and other fumed metal oxides under the brand AEROXIDE®. Overall, Evonik has a global production capacity for all silica based products of about 1 million metric tons/year.

Company information

Evonik is one of the world leaders in specialty chemicals. The focus on more specialty businesses, customer-oriented innovative prowess and a trustful and performance-oriented corporate culture form the heart of Evonik’s corporate strategy. They are the lever for profitable growth and a sustained increase in the value of the company. Evonik benefits specifically from its customer proximity and leading market positions. Evonik is active in over 100 countries around the world. In fiscal 2018, the enterprise with more than 32,000 employees generated sales of €13.3 billion and an operating profit (adjusted EBITDA) of €2.15 billion from continuing operations.

About Resource Efficiency

The Resource Efficiency segment is led by Evonik Resource Efficiency GmbH and produces high performance materials and specialty additives for environmentally friendly as well as energy-efficient systems to the automotive, paints & coatings, adhesives, construction, and many other industries. This segment employed about 10,000 employees, and generated sales of around €5.5 billion in 2018 from continuing operations.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.