Adcombo offer promoting via fb ads !!!!Help me

hey any one can just suggest me that which is better for promote health product.Facebook or IG.i see some offer on adcombo network there product EPC is $ 1.90 and product commision is $ i think its a great offer for now any one can suggest me that which traffic source is better for that type product to promote Spain or other any country from Europe…………
Facebook ?????
or other ??????