The social network imposed a temporary ban on those products in March in order to prevent scams, inflated prices and hoarding.
The social network said in a Newsroom post, “Since then, we’ve continued to monitor trends and activity around Covid-19 to better understand how people are using our platform and advertising tools during the pandemic.”
https://www.adweek.com/digital/facebook-lifts-ban-on-promoting-hand-sanitizer-surface-disinfecting-wipes/