Remineralization Gel - 5 Syringes of Gel. Remineralizing and Reduces Teeth Sensitivity After Teeth Whitening Treatment by Sunshine

I know I should probably know better than to order something like this from Amazon but I couldn’t find it anywhere else and needed something like this after whitening my teeth before getting some new replacement crowns. First thing I noticed was it was bright blue!! Why would something designed for teeth whitening have ANY colour in at all? So much for the saying ‘if it stains a white T-shirt then it stains your newly whitened teeth’!I still didn’t think not to use it though which I know is probably my fault especially considering the packaging was essentially just a zip lock bag with a cheaply printed barcode sticker on and nothing else that you would normally expect from something medical that is going in your mouth.I put some of it in my trays and this was a couple of days after I last whitened so I’m so glad that I didn’t do it instantly afterwards because I could see the blue dye all over my teeth staining them. I panicked and brushed it off after a few minutes but there was still a blue tint and the remaining bright blue gel was still stuck to parts of my trays even after I had rinsed them off thoroughly under cold water. If it will stick to the trays it obviously will stain your newly whitened teeth as well so what is the point of having it in there??It is a type of colour that washes off a bit compared to what it originally looked like but still it’s not enough to completely remove the colour and I don’t think a proper dentist would recommend using anything blue unless of course you were trying to counter a yellow stain which might be why some people are claiming it was whitening their teeth when it likely only toned down the existing yellow stains by staining them a different shade of colour.Something just doesn’t feel right about these though and the packaging is the main red flag for me because you have no idea what you’re really getting. At least from the dentist when you get the whitening gel from them you at least know whether they’re a reputable business and you know where you got it from and can complain if something goes wrong. These could have been made anywhere with literally anything inside them let alone the fact that they could easily be tampered with and you would never know because they could just seal the ziplock bag back up.In fact the packaging is so bad that one of them had popped open in the post and nearly went everywhere but luckily most had remained in the tube. There were no instructions either and I was a little confused about how to actually get it out of the cap and when trying to open the syringe, after it had already fallen apart previously in the post and I had to put the pump back in myself which must have caused excess pressure, it spilled a little when opening the cap. There are multiple red flags here and I would recommend against buying them at least not until they can provide some actual guarantees of safety, efficacy and reliability of ingredients to work but also not stain your teeth.