According to the FDA, the term "bleaching" is permitted to be used only when the teeth can be whitened beyond their natural color. This applies strictly to products that contain bleach — typically hydrogen peroxide or carbamide peroxide.
The term "whitening," on the other hand, refers to restoring a tooth’s surface color by removing dirt and debris. So any product that cleans (like a toothpaste) is considered a whitener. Of course, the term whitening sounds better than bleaching, so it is more frequently used — even when describing products that contain bleach.
White Bleaching Gel Syringes - Carbamide Peroxide
It's not the number of syringes you buy, but how much bleach is in each syringe. Syringes are calibrated in either milliliters (ml) or cubic centimeters (cc). Both are measurements of volume.
NOTE - Teeth whitening gel refills are ONLY used with Whitening Trays. By buying these whitening gel refills, you acknowledge that you have had professional instruction regarding the storage, dispensing and application of bleaching gel. Do NOT smoke, drink or eat while bleaching your teeth. It is NOT recommended to bleach your teeth if you're pregnant or nursing.
