>>82751569
Alright I can't find where I put the pdf (possibly lost it in a clearout), but I have the source links:
https://busty.jugem.jp/
https://www.breastnexus.com/showthread.php?tid=31159
https://www.breastnexus.com/showthread.php?tid=27469

First two are Chiyomilk and someone reviewing her method, last one is a flaxseed method. The pdf I remember was different though in that the woman massaged raw linseed oil into her breasts every morning but I can't for the life of me find it anymore, sorry. Thankfully I still had these links saved. That forum would be good for digging through too, a lot of information there.