44% wow how the can you manage that.
I'd assume some tumeric was missed and mixed with saliva.
I did eat one of those salsa dips with a few tortillas right before i put trays in. Something has reacted though I assume with the peroxide.
44% is ok. The first couple of times it's similar to eating a hottish pizza, you get that burned upper mouth well you get that in small sections of the gum after that you don't notice.
Whether it's really 44% is another matter, it's from China so they generally put whatever they want. I've seen other similar kits from China on eBay and they say around 0.1 or is it 0.01% peroxide do who knows how much is in it.