Hydrogen Peroxide: Widely used in professionally and self-administered products. Hydrogen peroxide is a highly reactive substance which can damage oral soft tissues and hard tissues when present in high concentrations and with exposures of prolonged duration.
Sodium Lauryl Sulfate (SLS): This foaming agent has the beauty industry buzzing because of its harmful effects on the body. It is often used in soaps, shampoos, toothpastes, and other products to achieve a lather effect. The harshness of this chemical has been proven to create microscopic damage to the oral tissue that lines the inside of your mouth, causing Canker Sores.
Silica: This form of sand, commonly found in whitening toothpastes and gels, scratches away at tooth enamel causing irreparable damage to teeth.
Polyethylene: A versatile ingredient used often as an emulsion stabilizer, viscosity increasing agent, and binding agent, it is also found in toothpaste because of its properties as an exfoliating, polishing agent. However, warnings suggest that using it on broken skin can lead to toxicity.
Sodium Hydroxide: Commonly used in drain and oven cleaners, this strong corrosive is now appearing in whitening products, causing burns and gastrointestinal ailments.
Ammonium Hydroxide: Ammonium hydroxide is found in many industrial products and cleaners such as flooring strippers, brick cleaners, and cements. Prolonged exposure can cause irritation, burns, gastrointestinal and respiratory issues.