Online seminars as an information source for direct-to-consumer stem cell therapy.

To attend stem cell (SC) seminars hosted by US-based direct-to-consumer SC businesses either in person or via online 'webinars' to determine accuracy and regulatory oversight of the advertised SC therapies. The therapeutic claims, costs, risks, scientific evidence in support of a therapy and any regulatory oversight were collated using pre-established checklists. Participation consisted of one live attendance of a seminar, and following COVID-19 restrictions, review of seven recorded presentations available on the internet from SC businesses.