Creates new provisions relating to the sale of kratom products

HB 504 regulates the sale of kratom products to enhance consumer safety. It requires sellers (including stores, restaurants, and manufacturers) to label kratom with its mitragynine and 7-hydroxymitragynine content, prohibits sales to minors, and bans products adulterated with harmful substances, contaminated, containing over 2% of a specific compound (7-hydroxymitragynine), or synthetic alkaloids. The bill preempts local regulations, making state rules the sole authority for kratom sales. Violations may result in fines or misdemeanor charges, with consumers allowed to sue for damages.