“…Previous studies reported that the daily use of topical dry mouth products containing olive oil, betaine, provitamine B5, allantoin, parsley oil and xylitol (Xerostom ® ) is safe and effective in relieving symptoms of xerostomia in a population with polypharmacy‐induced xerostomia (Ship, McCutcheon, Spivakovsky, & Kerr, ), radiation‐induced hyposalivation (Martín et al, ; Martín‐Martín, López, & Cerezo, ) and subjects with dry mouth symptoms (Lapiedra, Gómez, Sánchez, Pereda, & Turner, ). Xerostom ® products have different beneficial active components and do not contain sodium lauryl sulphate.…”