HiSmile is a brand of teeth whitening products that are peroxide-free and use a proprietary PAP+ formula to whiten teeth. The main ingredients in the whitening gel are Phthalimidoperoxycaproic Acid (PAP), Potassium Citrate, and Hydroxyapatite. PAP has been proven to be as effective as non-peroxide whitening methods, plus it prevents sensitivity and strengthens enamel. Hydroxyapatite is naturally present in bones and re-deposits minerals back into the tooth structure, reducing sensitivity and strengthening enamel. Potassium citrate relieves pre-existing sensitivity for a completely sensitivity-free whitening experience. HiSmiles whitening formula is 100% peroxide-free.
According to a review by Method Dental, the ingredients in the HiSmile gel have little to no whitening effect. However, other reviews, such as one by Dentaly, report that many people notice a difference after just one use. A review by NewMouth also reports seeing whitening results after the first 10-minute session with HiSmile's product.
In terms of other HiSmile products, the HiSmile V34 Colour Corrector promises to neutralize yellow tones, whiten teeth, and reduce yellow stains.
Overall, the effectiveness of HiSmile products seems to vary depending on the individual and the specific product being used. While some reviews report noticeable whitening results, others suggest that the ingredients in the gel have little to no whitening effect.
