{"product_id":"crest-professional-white-3d-teeth-whitening-strips","title":"Crest Professional White 3D Teeth Whitening Strips","description":"\u003cp\u003e\u003cstrong\u003eCrest Professional White 3D Whitestrips\u003c\/strong\u003e offer a convenient whitening routine with gel already applied to each strip. This retail box contains \u003cstrong\u003e20 treatments: 40 strips in total\u003c\/strong\u003e, with one upper and one lower strip for each application.\u003c\/p\u003e\n\u003ch2\u003eWhat is included?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne retail box of Crest Professional White 3D Whitestrips.\u003c\/li\u003e\n\u003cli\u003e20 upper strips and 20 lower strips.\u003c\/li\u003e\n\u003cli\u003eA 20-day course when used once daily as directed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose Professional White?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA secure fit:\u003c\/strong\u003e Crest's Advanced Seal Technology helps the strips stay against your teeth during treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady to apply:\u003c\/strong\u003e whitening gel is already on the strips, with no separate mixing step.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA simple routine:\u003c\/strong\u003e one 45-minute application each day.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCrest's packaging describes this kit as delivering \u003cstrong\u003e20 levels whiter in 3 weeks\u003c\/strong\u003e. Individual results vary.\u003c\/p\u003e\n\u003ch2\u003eHow to use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eTake the strips off their backing.\u003c\/li\u003e\n\u003cli\u003ePlace the gel-coated side against your front teeth, positioning the straight edge along the gumline. Fold the excess behind your teeth and gently secure.\u003c\/li\u003e\n\u003cli\u003eWear for \u003cstrong\u003e45 minutes\u003c\/strong\u003e, then carefully peel away. Rinse away residual gel if needed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eUse once daily for 20 days. Always check the directions supplied with your box and follow its stated treatment time.\u003c\/p\u003e\n\u003ch2\u003eIngredients\u003c\/h2\u003e\n\u003cp\u003ePVP, Water, PEG-8, Hydrogen Peroxide, Acrylates Copolymer, Sodium Hydroxide, Sodium Saccharin.\u003c\/p\u003e\n\u003cp\u003eManufacturer-listed formulation. Check your own pack for the ingredient list before use.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eShould I brush before applying the strips?\u003c\/h3\u003e\n\u003cp\u003eAvoid brushing immediately beforehand, as this can irritate your gums. Crest advises allowing time between brushing and application. Gentle brushing afterwards is fine.\u003c\/p\u003e\n\u003ch3\u003eWill the strips whiten crowns, veneers or fillings?\u003c\/h3\u003e\n\u003cp\u003eWhitening affects natural teeth, so existing restorations will not change colour to match. Speak to your dentist before use if you have dental work or need treatment. Do not apply the strips over braces or loose teeth.\u003c\/p\u003e\n\u003ch3\u003eWhat if my teeth become sensitive?\u003c\/h3\u003e\n\u003cp\u003ePeroxide whitening can cause temporary tooth sensitivity or gum irritation. If discomfort develops, pause treatment. Stop using the strips and seek dental advice if it persists. If you already have sensitive teeth, ask your dentist whether this product is suitable.\u003c\/p\u003e\n\u003ch3\u003eHow many applications are in a box?\u003c\/h3\u003e\n\u003cp\u003eThere are 20 complete applications. Each uses two strips: one for your upper teeth and one for your lower teeth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e keep somewhere cool and use before the date printed on the pack. Read all packaging precautions before use.\u003c\/p\u003e","brand":"Crest","offers":[{"title":"Default Title","offer_id":57006895726978,"sku":"Cfb20","price":59.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6601\/1616\/files\/2026-10-29_17h49_47.png?v=1793321395","url":"https:\/\/www.sparklingteeth.co.uk\/products\/crest-professional-white-3d-teeth-whitening-strips","provider":"Sparkling Teeth","version":"1.0","type":"link"}