Clean and tidy teeth have a positive impact on a person's appearance and well-being, which is why regular oral hygiene is very important. Cosmetic products play a big role in this. In this thesis, we have studied the forms of cosmetic products for teeth whitening and their active and excipient ingredients. We coincidentally selected 50 cosmetic products from drugstores, pharmacies and online shops. Toothpastes are the most common cosmetic form of teeth whitening products, but there are also powders, tablets, mouthwashes, gels and foams on the market. Abrasives, phosphates, oxidising agents, enzymes, adsorbents and pigments work to increase the whiteness of teeth. The most common active ingredients are abrasives, which remove plaque and stains mechanically. Thirty-four percent of all selected products are abrasives as active ingredients. The cosmetics examined mostly contained hydrated silica. The second most common group was phosphates, represented by pentasodium triphosphate. They also act as an active ingredient to prevent tartar formation. Among the oxidising agents, hydrogen peroxide, sodium chlorite, sodium chlorate, sodium carbamide peroxide and phthalimidoperoxycaproic acid were present. The main representative of adsorbents in cosmetic tooth whitening products is activated and non-activated charcoal. Among the enzymes, papain and glucose oxidase were present. Pigments for optical tooth whitening were not present in the products. We also investigated the groups of excipients in the cosmetics formulations studied. The ingredients are very similar in all forms of tooth whitening cosmetics. The most common anionic surfactant in the products studied was sodium lauryl sulphate and the most common humectants were glycerol and sorbitol. These two also act as sweeteners due to their sweet taste, otherwise sodium saccharinate was the most commonly present sweetener. Sodium benzoate was the most common preservative. Flavourings and fragrances are responsible for covering taste and odour, most often in a combination of essential oils and extracts, which also have antimicrobial activity. Limonene was the most common. Tooth whitening products were most often white (titanium dioxide - CI 77891) or black (charcoal - CI 77267). Xanthan gum was the most common thickening agent. The main difference between toothpastes and tooth-cleaning tablets is the absence of preservatives and humectants in the tablets, as they do not contain water. After literature research, we agree that infrequent use of cosmetics for teeth whitening can cause tooth sensitisation, so it is reasonable to use them only occasionally.
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