nah doesnt go in the bottle PP. I know it does break down in water and i have to give it to her with a syringe with 2mls of water. Do what is best for ethan hun and if thats putting him on formula just do it. U have been great giving him BM for so long and u should be mighty proud! I know when i was stuffing around with BFING, EMB and formula it becomes abit much. But yes, expressing too much does lower your supply dramatically. But it wont dry up. So even if u express and formula feed him and then try and go back to full bfing when hes abit older and he can handle it more? just throwing some idea;s out there.. i wish i was wtill BFIng