First of all I would not let a salesperson pressure me into something I was unsure of. I would do a lot of research. Learn about teeth sensitivity following whitening. Learn about potential damage to the gums. Find the best price. For those who do not know what solar whitening is: http://www.wholesalecentral.com/Solar-Teeth-Whitener.htm Here is a link that might be useful: Solar

I had used baking soda and also peroxide over the years and they both got rid of tea/coffee stains but not nearly as well as the new products. I used forever white (from an infomercial) about a year ago and saw dramatic results (about $39) More recently I used Crest white strips ($35). I did the top teeth only out of curiosity and saw dramatic results again after a couple weeks. What I like is that these products are not abrasive like whitening toothpastes. I would strongly recommend the new products - my friend got a kit from her dentist for $350 and I didn't think it worked any better than the over the counter.

Snidely, give it up, will you? It's a pathology with you.....always needing to be right. Even when you aren't. Just leave it! To answer questions: the strips do not whiten crowns, fillings, or other dental work. The bleaching agent is a type of peroxide. I've heard that some people are very sensitive to these treatments.....I wonder why? My gums became a bit tender, but I swished coconut oil in my mouth before bedtime and never a problem after that. Yaya, I think that you're doing it too frequently. The treatments keep working even after you're finished....I probably won't do mine again for another year. But, I'll have to see; with my usual dental hygiene routine is pretty thorough. About why the kits are behind the counter....I asked why when I bought mine. The reason is THEFT! I had a heartbreaking talk with the manager when he brought out all of the options for me to choose from. He said that they cannot keep anything of value out on shelves or it will be stolen rapidly. Items like makeup are so expensive because of theft.

Whitening toothpaste can appear to whiten teeth slightly by removing surface stains, such as those caused by drinking coffee or smoking. However, whitening toothpastes can't change the natural color of your teeth or lighten a stain that goes deeper than a tooth's surface. https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/whitening-toothpaste/faq-20058411 You'll have better and faster results using something like Crest Whitestrips.