Top 10 Prohormones 2022 & 2023

Estrogen and Progesterone are 2 key hormones that regulate the menstrual cycle. (Of course there are many other hormones, but these two are major 🔑🔑) Estrogen dominates in the first half of the cycle and builds up the lining of the uterus (a.k.a endometrium) During the second half of the cycle (after ovulation) Progesterone takes over and maintains the uterine lining. If fertilisation does not take place, Estrogen and Progesterone drop and the lining of the uterus begins to fall away- a.k.a Yo