A woman in the UK experienced acute liver failure after using a weight loss drug purchased from a beautician. Megan Hancocks bought the product, labelled as retatrutide, with cash. She developed liver failure within a week of her second dose. The incident highlights the dangers of obtaining prescription medications or purported health products from unregulated sources. Authorities are warning against the use of counterfeit weight loss drugs due to potential health risks. The case underscores the importance of verifying the authenticity and safety of any medication before use. Investigations are ongoing to identify the source of the counterfeit drug and prevent further harm.