The line is closer than you think
Anything implying treatment, cure or medical benefit is restricted. That includes reviews and user content you display on the page, not just your own descriptions.
Long consideration, heavy research
Buyers read before they buy. Attribution windows set too short will credit almost nothing to the campaigns that started the process, and you will cut the wrong things.
Consumables change the maths
Where the product reorders, a higher first-order CPA is defensible — with real repeat data.
Supplements making grey health claims we turn down entirely. More: the wellness vertical page.