Question 1

Is this the same professional-strength gel used by dentists?**

Accepted Answer

Yes, absolutely. Opalescence is a trusted brand manufactured by Ultradent, a leading company in dental products. The 35% carbamide peroxide formula is identical to what many dental professionals provide for at-home whitening treatments. This is why it's so highly rated for its effectiveness compared to over-the-counter options.

Question 2

How bad is the tooth sensitivity, and how can I manage it?**

Accepted Answer

Sensitivity is the most frequently mentioned side effect, but it's often manageable. Many users report a temporary increase in sensitivity, especially in the first few applications. The consensus from reviews is to: 1) Use a toothpaste for sensitive teeth for 2 weeks before starting, 2) Apply the gel for shorter periods (e.g., 30-60 minutes instead of overnight) if needed, and 3) Take a day off between sessions. The sensitivity typically subsides after treatment.

Question 3

I have whitening trays from SmileDirectClub, Byte, or my dentist. Will this gel work with them?**

Accepted Answer

Yes, this refill kit is designed to work with any custom-fitted or boil-and-bite trays. A key tip from user feedback is to ensure your trays fit snugly to prevent the gel from leaking onto your gums, which can cause irritation. Use only a small, pea-sized amount per tooth, and wipe away any excess gel from your gums immediately.

Question 4

What's the difference between this 35% kit and lower percentages like 10% or 20%?**

Accepted Answer

The percentage refers to the concentration of the whitening agent (carbamide peroxide). A higher percentage like 35% works faster, meaning you may see dramatic results in a few days to a week with shorter daily application times. Lower percentages (10%-20%) are often recommended for those with very sensitive teeth, as they work more gradually with less potential for sensitivity. This 35% kit is ideal for those seeking faster, more powerful results and who are prepared to manage potential sensitivity.

Question 5

Does this kit include the whitening trays?**

Accepted Answer

No, this is a **refill kit** and contains only the four whitening gel syringes. You will need to use your own custom-fitted trays (from a dentist or at-home impression kit) or purchase "boil-and-bite" trays separately. This is a common point of clarification for first-time buyers, as the product is intended to replenish gel for users who already have trays.

Opalescence 35% CP Mint - Gel Syringes Teeth Whitening - Refill Kit - Carbamide Peroxide Gel. Made by Ultradent. Tooth Whitening Refill Syringes 5197 (0.04 Fl Oz (Pack of 4))

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