precipitated silica used in the pharmacy as a desiccant and support for an active drug; precipitated silica used in cosmetology; namely, as a thickener to allow regulation of the unctuousness of toothpastes

Precipitated Silica Used in the Pharmacy as a Desiccant and Support for an Active Drug; Precipitated Silica Used in Cosmetology-Namely, as a Thickener to Allow Regulation of the Unctuousness of Toothpastes