There are many techniques, whitening agents, application times, concentrations, and many variables in tooth whitening treatments. One of these options is to use the same whitening agents that we use in the clinic, at a lower concentration with mouth guards that we make individually for each patient. All this is done with instructions, materials and products that are given directly by the professional in charge of the case, the problem is that many trends are now seen on social networks with «advice» from influencers where they use various products that supposedly whiten the teeth. Products range from baking soda, household cleaning products, even bleach. All these «tips» are (and one cannot be more emphatic about this) dangerous, harmful and we ask the reader please NOT TO IMPROVISE WITH DENTAL WHITENING MADE AT HOME. This is a very serious issue, which we consider dangerous, high risk, with consequences that can even be fatal. In a social network where influencers upload posts of audiovisual content, especially videos, a specific influencer uploaded a video where she literally uses a household cleaning product that contains sulfuric acid and formaldehyde, whose slogan for sale is “muscles enough to clean up any mess in the home”, yes, “…to clean up any mess in the home” and challenges dentists in the same video to disprove it, and beyond that, to confirm that fluoride is good for the teeth. Although it may seem like a joke or a story that is hard to believe, this video was seen more than 2.5 million times on that social network. With this we would like to conclude that any treatment in any area of health, whether oral or not, must be carried out by specialists, not improvise and ignore videos, photos or advice that can go viral on social networks.