Two checks, not one

FDA warned of counterfeit Botox associated with adverse events, including hospitalizations. CDC's later update covered unsafe counterfeit products or injections by people not following local requirements. Product authenticity and the injector's qualifications are separate questions.

Ask about the authorized supply chain

CDC recommends receiving injections only from licensed, trained providers using products obtained through authorized suppliers. Ask the provider to identify the product and its source. Packaging photos alone should not replace professional verification.

Sources[2] CDC

Recognize when a price dispute becomes urgent

FDA advises people with concerning symptoms after botulinum toxin injections to contact a health professional or emergency care. Trouble breathing or swallowing needs immediate medical attention. Keep the product and provider details available for clinicians; do not wait for a seller's refund response.

Sources[1] FDA