Based on my experience, the product is crap and doesn't work
When I posted on Instagram that it was crap and it didn't work on myself and five other people agreed, we were tagged in a comment from HiSmiles to contact them to help us get the results. They were not interested in helping at all, they just told me how to use it (which I was doing correctly) and that was the end of that. Save your money!
I hear charcoal whitens teeth and there is a new company out there who sells it in a little tub. Give that or anything else a go!
Bottom Line: No, I would not recommend this to a friend
22 people found it helpfulLink to this Review
We're sorry to hear that you weren't satisfied with your results.
Results will vary greatly from person to person, depending on the type of teeth or conditions of teeth/stains the user has. It may take a number of months to completely rid your teeth of touch stains.
Feel free to email us at firstname.lastname@example.org and we can definitely assist you further and provide you with great tips on how to use HiSmile.
We look forward to hearing from you soon.