Professional All New Turbo Whitening Gel. Professional Tooth Teeth Whitener Product Syringe Only Gels by Touch of White Smile

I have used this a couple of times since I got it, probably 1 or 2 times a week, with concerning results. The product might not be mixed together well enough. A couple of times it felt too strong for my upper gums like it was sort of creating a burning sensation so I only left it on for about 20 minutes. Other times it didn't seem like it was doing much. The other day the tube was clogged, so I poked it with a dental pick and it flowed more easily. The product was so strong I had to remove it after 5-10 minutes. My lower gums were white from the intense strength...it took about 20 minutes to get them back into normal condition and they have been sensitive since. My teeth are whiter, but I haven't experienced this before and I have been maintenance whitening for about 10 years or so. Be cautious. **The product comes with NO information or instructions for use**