What can I say... My gums are burnt. The bleaching itself was ok. I didn't feel so well whitened, didn't know what was happening and it was uncomfortable, after 45 I had to stop. An hour later the pain started. Everything is ok, it's normal. It got worse and worse, I had to take painkillers and couldn't do anything all day. The next morning the toothache was completely gone, wohoo! But the gums had started to hurt. On the 2nd day: unchanged. On the evening of the 2nd day after the treatment, I can see it: a white layer of skin is peeling off. ChatGPT says my gums are burnt. The healing process will now take 2-3 weeks. Is ChatGPT a doctor? No. But ChatGPT simply helped me a lot more than the dentist during the whole procedure. A call there in pain: not helpful. Overall a money saving offer which I would not recommend after burning my gums.