Compare like with like. A 0.8 g pouch and a 0.4 g pouch at the same mg/g are not the same product in the hand.
Several European markets cap nicotine content, and the ceiling is not the same everywhere, because a product that is legal in one market can be non-compliant one border away. The frameworks differ as much as the numbers. Sweden regulates the category under a dedicated statute,
Lag (2022:1257) om tobaksfria nikotinprodukter, covering age limits, product requirements and reporting. The UK has no category-specific statute and handles pouches under general consumer law, the
General Product Safety Regulations 2005. And where an EU market has no dedicated rule, the baseline is
Regulation (EU) 2023/988 on general product safety.
If you are building a range for more than one country, the strength ladder is a compliance decision before it is a marketing one.