Opalescence 20% Teeth Whitening Refill Kit (4 Syringes) Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening Refill Syringes - B-5196-4

Great whitener. Less expensive than when I purchased from personal dentist office. Definitely whitened my teeth. Will purchase again

Absolutely love this product. I have worked in the dental industry in the past. I was a huge fan of night white ACP. Recently, have tried this brand from my orthodontist, and the results were so quick and painless. I instantly went to Amazon to buy more. To my surprise it was very affordable. I would recommend doing in the evening after you have finished eating and can go at least 12 hours before eating or drinking anything. When bleaching your teeth, you are roughing the surface of the tooth enamel, which makes you more prone to staining. With that in mind, you have to keep that in the back of your head for what you plan on eating the following week. If you drink coffee, you have to drink it through a straw and make sure you brush your teeth right after pasta sauce, beets, any food that is prone to staining will stain in your teeth after their bleached. I remember telling my clients that if you were to wipe it off of an untreated quartz countertop and it would leave a stain, it would leave a stain on your teeth as well. That all being said this was a phenomenal product. Please ask a professional for trays and do not overuse this as it can permanently damage your teeth and create extreme sensitivity, along with weakening the tooth structure that is with all whitening products even in office treatments. You should probably be doing whitening in stages and build up your tolerance. You could do 15 minutes one day and the next only be able to comfortably do five you don’t want to have super reactive nerve pain as it is one of the most painful pains. I know it sounds silly, but ask your dentist if you are a good candidate for teeth whitening. You may be a better candidate for veneers if your teeth are intrinsic stains, meaning the stain is from within.

Used it and the results are very clear and noticeable. Maybe they don’t last as long as I would expect but it might be for not having the best care, will use them again and make an update or other review.

Always a good value. I use 1 syringe once a month. Works Great !

Love this product! I am obsessed with having a bright white smile and this product delivers! This is the same product and strength that is sold in my dentist office but for a MUCH better price 20% is plenty strong. If you go any stronger your teeth will be very sensitive. Especially when the cold winter air hits your teeth

You will want to buy self molding trays to use with this whitening gel. It can be used at night while you sleep . I had no irritation from it and it does whiten your teeth .

Works great at whitening if used daily for a week to 10 days. If you use the 20% overnight, the strength makes your teeth sensitive, but speeds whitening. Probably better to stick to 10% strength for overnight, and 20% for no more than 4 hours each day. I was happy with the results.

I have used this for years. Usually, 2 syringes over 2 or 3 days (to preserve my gums) would yield noticeable results. If I were going on vacation or had an event, I'd do it for 3 nights over 5 days and results were awesome. The last batch I received in Nov 2023 had an expiration date of Oct 2024. The packaging was sealed. When I purchased from my dentist, he always had it in the fridge and mentioned that prolonged the life of the product, so I always refrigerate after it comes. This last time, it just didn't perform like other times and there was little whitening. With a year before expiring, I don't know why, but also don't know how old it can be and still considered fresh. Packaging looked the same but syringes seemed a little smaller and a bit flimsy compared to the past. The little end tips used to twist off easily but this time, the whole end came off up to the barrel of the syringe and was difficult to distribute in the dental traps. Not cool. The missing info could be how the product is stored before delivery to the end user and under what temps it is shipped. I'm going to try the new "Opal" product this time. I don't know if it's the same product as before with new packaging, but it HAS to be fresher.

I try it before and it was amazing bleaching process

Great product, much cheaper than directly from a dentist, arrived exactly when it said it would.

Es una excelente opción para blanquear gradualmente los dientes en casa. Me la recomendó mi Dentista, peto si te tienen que hacer la charola o guarda para colocar el producto en tus dientes.

good but make my teeth very sensitive

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