Many Victorians wanted to have a very pale complexion which was supposed to give them a more aristocratic look. 👻 Because of that, companies started to add arsenic to various cosmetics, including soaps 🧼, lotions, 🧴 and powders . Arsenic was also advised, either in the form of wafers 🍬( e.g. Dr Rose’s Arsenic Complexion Wafers) or fluids 🥛 (e.g. Fowler’s Solution, also used as medicine).
There were known cases of death caused by such treatments, but it didn’t discourage many of the customers. ☠️
Interestingly, prolonged use of arsenic actually darkens the skin, which suggests that the producers might have skimped on the arsenic quantity in their products, thus making them a little bit less deadly.
You can find more crazy treatments from the past in a fascinating book: Quackery: A Brief History of the Worst Ways to Cure Everything.