In the instance of Steel Bite Pro, it appears to primarily be a flavoring agent. Finally, carbomers are synthetic polymers that largely act as thickening agents. Taking all of this together, you can see that none of these ingredients are especially (or at all) effective for delivering whiter teeth. What’s Does Steel Bite Pro’s Manufacturer Have to Say? However, at the bottom of the Steel Bite Pro website, they list two pieces of evidence to support their claims: An ADA statement of efficacy for teeth whitening products. This is a general statement, though, and doesn’t specify the method Steel Bite Pro uses to whiten teeth. A March 2011 study conducted by Essex Testing Clinic, Inc. based out of Verona, NJ that resulted in up to an 18% improvement in teeth shade after a single application of a gel. The product is only referred to as “Teeth Whitening Gel Formula,” and Steel Bite Pro is not mentioned specifically.