They are quite different from each other. The layers mash is made of the same stuff as the layers pellets, just not pelleted, (like all other brands.) My hens do well on the pellets. Alfamix is a mixture of grains, seeds, mini-pellets and cephalopods (sort of dried shrimpy things.) It's lovely and the hens go mad for it but it's quite a lot more expensive than the mash or pellets. I originally bought some by mistake for Alfachick, which as its name suggests is a high-protein mix of small seeds and grains and mini-pellets which I give to my quail (and would recommend for special chicks if I had any.) ATM I'm still giving the hens a daily warm mash of 50% pellets and 50% Alfamix, served damp and crumbly out of a deep bowl, and they all seem to love this. I can add ACV or CLO as well when I think it's a good idea. You could do this with mash of course, but i prefer the pellets as when they eat these dry out of the reserve feeder they have to take them as they come and not pick out the nicest bits and waste anything. And the pellets are easy to soak with about 30% of water to a given volume of feed.