karbamidperoxids

Karbamidperoxids, also known as urea hydrogen peroxide, is a white crystalline solid that serves as an oxidizing agent in various consumer and medical products. It is formed as an adduct of urea and hydrogen peroxide and releases hydrogen peroxide when it dissolves in water or is applied to a substrate. This slow-release behavior makes it a milder source of oxidizing power compared to concentrated hydrogen peroxide.

In dental care, karbamidperoxids are widely used in teeth whitening products. The active whitening effect comes from the hydrogen peroxide released during processing in the mouth, with typical formulations containing up to about 10% karbamidperoxids (equating to roughly 3% hydrogen peroxide). The slower release can improve comfort for some users and is suitable for at‑home whitening under professional guidance. The compound is also used in otologic products as an earwax-softening agent, often in similar concentration ranges.

Safety and handling require caution, as it is an oxidizer that can irritate skin, eyes, and mucous membranes. It should be kept away from heat, acids, and incompatible materials, and products should be used strictly according to directions. In case of contact with eyes or ingestion, appropriate medical advice should be sought. Storage should be in a cool, dry place in tightly closed containers, protected from moisture and extreme temperatures. Regulatory status varies by country and by intended use, with cosmetics, pharmaceuticals, and medical devices governed under respective frameworks.