FBA Vs FBM? Which one would you recommend?

So i’m already making sales doing FBA (Wholesale), but i have an opportunity to work with a company (3PL Pick Prep Shipping Company) that’ll convert into FBM which would results in lesser fees and such giving me more of profit. But i don’t know if i should do it. I do skincare on amazon and it would be great if i had better margins cause the fees. so now im confused whether i should go with FBA or FBM?