Fecha de publicación: 05/01/2023 Fuente: WIPO (eseential oils OR extracts) A method for visibly whitening teeth at least three shades as measured using a tooth shade grading system, the method comprising providing a gel composition that (a) does not contain a peroxide bleaching agent, (b) is conformable to teeth surfaces and to interstitial spaces between teeth, without permanent deformation thereof, and (c) is removably attached to a release liner; wherein the gel strip consists essentially of (x) a sea salt and (y) at least two essential oils selected from the group consisting of (i) lemon peel oil; (ii) coconut oil; and (iii) sage oil; and applying the gel strip to the outer surface of the teeth in an amount sufficient to coat the teeth, once daily for a period of time from about 15 minutes to about 30 minutes. A method for preventing teeth staining by applying the above gel composition twice to teeth allowing 30 seconds drying between applications.