hormone-guides

Testosterone in Women: How It Changes Throughout Your Cycle

Testosterone in women peaks around ovulation, influencing libido, energy, and confidence. In PCOS, excess androgens disrupt the cycle. Here's how testosterone actually works.

Testosterone is not a male hormone. It is a key part of female physiology that most cycle education ignores. The conventional picture of female hormones is estrogen and progesterone, with testosterone as an afterthought. This is incomplete. What Testosterone Does in the Female Cycle Women produce testosterone primarily in the theca cells of the ovaries and in the adrenal glands. Normal female testosterone levels are roughly 15 to 70 ng/dL, about one tenth of typical male levels. Even at these concentrations, testosterone has meaningful physiological effects. The ovulatory peak Testosterone and DHEA (its precursor) peak around ovulation alongside the LH surge. This timing is not coincidental. The peak in libido, sociability, and confidence that many people notice around ovulation is partly testosterone mediated. Research has shown increased approach behavior and higher energy around ovulation, consistent with a testosterone and estrogen combined effect at mid cycle. If you track your energy and libido by cycle day, you will often see a distinct peak in days 11 to 14 (for a 28 day cycle). This is the testosterone plus estrogen combination at its highest. The follicular phase rise Thr