Yes, the Alchemy Lab for Alkashards is worth it IMO – I trade mine to get emblems.
Make sure you hit level 5 (I think it’s level 5) to let you do 2 transmutations at a time.
Have a read here: A Guide to the New Alchemy Lab (v30, 2020-06-17)
Though personally, I run 1A over 1B since I would rather have more large bones over the 2* crafting materials (which I seem to have far more of than large bones right now for some reason 
)