Regulated cannabis goes through testing that checks for things like mould and...

https://brooksiwjk610.wpsuo.com/what-is-the-difference-between-medical-cannabis-flower-and-other-formats

Regulated cannabis goes through testing that checks for things like mould and pesticides, which helps keep products safer and consistent. Without these rules, unregulated cannabis can vary a lot in strength and may contain harmful contaminants