NMN is fully water soluble.
Liposomal (and Micelle) delivery is usually for materials that are not soluble like Resveratrol, Quercetin or Curcumin.
At this point, I consider it mostly a marketing ploy when companies say "X is in a liposome!" if X
is fully water soluble, unless the manufacturer wants to create a slow release product or has a specific formulation.
Don't get me wrong... if its a formulation of NMN + Res or Curcumin... or Quercetin which all need help in absorption
then yes, the liposome will likely help the absorption of the other non soluble ingredients.
Remember that the Slc12a8 gene in the small intestine is made specifically to absorb NMN from foods, and will immediately
absorb pure NMN naturally and faster than anything else, except say an IV.
It's possible covering NMN in some liposome or micelle may slow down absorption by the Slc12a8 in the small intestine IMHO.
So if it's a slow release product, that might be ok for you.
Personally, I don't make slow release products.
We like to do fast release products and spike the blood before things get metabolized.
Just my two cents
A