Joziel it's a combined Pill because of the synthetic progesterone contained within it (nomegestrol acetate, which is the newest generation of progesterones) as well as the estrogen. The only difference between it and other contraceptive pills (aside from the type of progesterone, which varies in all Pills) is that it uses estriadol as the estrogen, the body identical form (and therefore has a more favourable side effect profile).
The theory about using it (or any contraceptive pill for peri) is that shutting off ovulation will prevent the fluctuations that some people experience as part of it. Zoely shuts off ovulation via its progesterone. However that wasn't the case for me - it did prevent ovulation (as all contraceptive Pills do) but it didn't stop my hormones from fluctuating underneath (ovulation and movement in your hormone levels aren't the same thing necessarily). I was fine for about 6 weeks and then all my symptoms started up again and after 3 months I had blood tests done over the course of a month which showed that my own hormone levels were fluctuating like mad, worse than before I started the Pill. It's possible if I had given it a year or 6 months that they would eventually dampened down, but I wasn't prepared to wait that long. I then tried Yasmin (a contraceptive pill like most with synthetic estrogen in it instead of estriadol) and it was the same experience. After that I tried Lenzetto and that's what worked for me in the end.
However as I've said before this was my experience and doesn't mean that others will have the same, as everyone's hormones and situation are so unique! You really need to find what works for you and unfortunately it's often a case of trial and error. Just because it didn't prevent my stoopid hormones from going mad, doesn't mean the same will happen for someone else xx