I'm with Datun on this. 'Women' covers absolutely everybody who needs to use menstrual products.
I don't particularly mind if female, menstruating people who don't identify as women want to lobby manufacturers of these products to add something else to their marketing, but it's not for me to campaign for.
In fact, given that there's a clear plurality of views amongst biologically female people who don't identify themselves as women, it's not something I, as a woman who does not experience conflicting (or indeed any) gender identity, should be wading in on.
It's completely up to them to represent any additional wording they'd like to sanpro manufacturers.