{"product_id":"opalescence-teeth-whitening-gel-20-carbamide-peroxide-4-x-1-2ml-syringes-for-custom-trays-2-4-hour-wear","title":"Opalescence Teeth Whitening Gel 20% Carbamide Peroxide — 4 x 1.2ml Syringes for Custom Trays, 2–4 Hour Wear","description":"\u003cp\u003e\u003cstrong\u003eOpalescence 20% carbamide peroxide gel syringes are a professional-strength, at-home teeth whitening refill designed to fit custom trays and lift common surface stains in 2–4 hour daily wear sessions.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese Opalescence syringes deliver a dental-grade whitening formula in easy-to-use dispensers, letting you refresh your tray-based whitening routine without visiting the office. Formulated by Ultradent, the 20% carbamide peroxide gel balances potency and comfort for daytime or evening use. The syringes are compatible with custom trays, aligners, and retainers (trays not included) and come sweetened with xylitol for a more pleasant experience.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly can I expect visible whitening results?\u003c\/h3\u003e\n\u003cp\u003eMost users notice shade improvements within the first week when wearing the 20% gels for the recommended 2–4 hours per day. Results depend on initial tooth shade, type of stains, and treatment consistency. Deeper intrinsic staining may require longer or repeated courses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical visible change: several shades within 7 days with daily wear.\u003c\/li\u003e\n  \u003cli\u003eRecommended wear time: 2–4 hours per session for 20% carbamide peroxide.\u003c\/li\u003e\n  \u003cli\u003ePack size: 4 syringes, each 1.2 ml — suitable for multiple applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this Opalescence gel safe to use with my aligners or custom trays?\u003c\/h3\u003e\n\u003cp\u003eYes — the gel is formulated for tray delivery and works with most custom-fit aligners, retainers, and Invisalign-type trays. Apply a small, even bead into each tooth compartment to avoid excess overflow and contact with gums. If you have sensitive gums, follow your dentist’s guidance on placement and duration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with: custom dental trays, aligners, retainers (trays not included).\u003c\/li\u003e\n  \u003cli\u003eApplication tip: use small amounts to reduce gum contact and clean-up.\u003c\/li\u003e\n  \u003cli\u003eProfessional support: widely recommended by dental professionals for tray systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill I need an LED light or special equipment?\u003c\/h3\u003e\n\u003cp\u003eNo additional light source is necessary; Opalescence 20% gels are formulated to work effectively without LED activation. The product is designed for chemical whitening within a tray system, relying on carbamide peroxide to break down stain molecules. Avoid pairing with unapproved devices unless directed by a dental professional.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo LED required or recommended for Opalescence Deluxe Opal line.\u003c\/li\u003e\n  \u003cli\u003eUse the syringe to place gel into trays — no mixing or heating needed.\u003c\/li\u003e\n  \u003cli\u003eStore according to manufacturer instructions and discard if altered or expired.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect in terms of sensitivity and aftercare?\u003c\/h3\u003e\n\u003cp\u003eMild tooth sensitivity can occur with peroxide-based whitening; it is often temporary and varies by individual. To manage sensitivity, shorten wear time or take breaks between sessions, and consider desensitizing products if advised by your dentist. Maintain good oral hygiene and avoid stain-causing foods and drinks after treatment for longer-lasting results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePossible mild sensitivity — reduce wear time if necessary.\u003c\/li\u003e\n  \u003cli\u003eXylitol-sweetened formula may support oral comfort during use.\u003c\/li\u003e\n  \u003cli\u003eFollow-up: brush gently and avoid highly pigmented foods immediately after sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Opalescence 20% carbamide peroxide syringes suit adults seeking a professional-level tray whitening refill to use at home. It’s ideal for users who already have custom trays or aligner-style appliances and want a controlled, potent option without an LED light. If you have extensive dental restorations, advanced sensitivity, or specific oral health concerns, consult your dentist before beginning whitening.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eGlycerin, Water (Aqua), Carbamide Peroxide, Xylitol, Carbomer, PEG-6, Sodium Hydroxide, Mentha, Piperita Oil, EDTA\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I wear Opalescence 20% gel each day?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Wear the 20% gel for 2–4 hours per day, following your dentist’s guidance for best results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use Opalescence with my Invisalign or retainer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the gel is compatible with custom trays, aligners, and retainers; avoid excess gel to limit gum contact.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Opalescence","offers":[{"title":"Default Title","offer_id":54587063107923,"sku":"B00EXPY0KY","price":60.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/opalescence-front-packaging_ff090c37-a622-4e0e-828a-c7c992742b47.jpg?v=1786698883","url":"https:\/\/findsworth.co.uk\/products\/opalescence-teeth-whitening-gel-20-carbamide-peroxide-4-x-1-2ml-syringes-for-custom-trays-2-4-hour-wear","provider":"Findsworth","version":"1.0","type":"link"}