| 摘要 |
The present invention relates to stable personal care composition, includ ing oral care compositions containing a peroxide source. The compositions ar e stabilized by eliminating or minimizing the presence in the composition of metals having radical forming potential with the peroxide. Preferably, the metals that are eliminated or reduced are cobalt, copper, palladium, nickel and iron. The compositions are further stabilized by the addition of agents having scavenging or quenching activity for free radicals. Reducing free rad ical activity in the product matrix prevents radical- mediated loss and degr adation of peroxide and other ingredients, in particular organic compounds a dded as active or aesthetic agents, including flavors, perfumes, colorants a nd thickeners. Provided are peroxide containing oral care products with enha nced consumer appeal in terms of taste, mouthfeel and appearance, thereby en couraging compliance and regular use. Such attributes are important since us e of these products may involve fairly long residence time in the mouth for efficacy.
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