How is it dosed? A pump bottle? Those typically have 20mg per pump. I don't know how much. It should be safe unless you dose it insanely high. What is your purpose with it? Over all hormone levels or a topical protocol of some sort?

These are quite mild compared to conventional HRT unless you use big doses, keep that in mind. On its own it might not do a huge difference if your body is testosterone dominant without anything inhibiting T or DHT levels.

If you plan to use it topically, please read the Topical Cream Protocol thread and add in Progesterone and DHEA in some form at least. This combination should keep cancer risks at bay and works fantastically together, estradiol alone wont have the same effect or it will be much slower.