I know tren does not convert to estro. However I've been told the Prolactin can bloat you. I was very confused, as I was not looking as I thought I would on Tren. Well I have from a very smart board member that Caber which should be on hand at a minimum while on tren can take care of the prolactin bloat. He was way more scientific than that. I get anti-p from the Muscle Chemistry store. WAY LESS EXPENSIVE than pharma Caber, easier to get, legal, and is real. So there you have it, easy peasy.