articles/PMC10191735/
Topping up occurs when new product is added without first emptying, washing, disinfecting, and drying the container.Bacteria present in product residues may adhere to the inner walls and contaminate the newly poured contents.
There’s also a risk of tampering with the dispenser by guests if it’s easy to open. Stories circulate online about people allegedly pouring depilatory cream or other substances into these containers.
While there is no evidence that this is common practice, an open or unsecured dispenser is an avoidable risk.
How can you tell if hotel shampoo may be dangerous?
Before use, it is worth paying attention to a few details.
Do not use the product if the bottle:
It has a broken seal or appears to have been previously opened.
Shows signs of leakage around the cap. Contains fluid that has separated, is lumpy, or has an unusual color.
It emits an unusual
