The Proof with Simon Hill

Testosterone for women | Professor Susan Davis, AO


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In today’s episode, I sit down with Professor Susan Davis, an endocrinologist and one of the world’s foremost experts on hormones in women’s health. We explore the role of testosterone in women, separating fact from fiction, and tackling the common myths that circulate online and in the media.

Susan shares what decades of research actually show about testosterone therapy, its benefits, limitations, and safety, and why participation in clinical trials is essential for moving the science forward.

What We Cover

  • Why testosterone is not just a male hormone
  • How levels change throughout a woman’s life
  • Common myths about testosterone therapy and the truth behind them
  • The link between testosterone, libido, and sexual function
  • Evidence for and against claims around mood, muscle, and wellbeing
  • Side effects and safety considerations at female-appropriate doses
  • Compounded hormones compared with pharmaceutical formulations
  • The biggest gaps in research and where the science needs to go next
  • This episode offers an evidence-based look at testosterone in women, helping you cut through the noise and focus on what the science really says.

    • Intro: (00:00)
    • Which Testosterone Claims Are True And Which Are False? (05:42)
    • What Does Testosterone Do In A Woman’s Body? (12:09)
    • How Do Testosterone Levels Change Across A Woman’s Life? (15:12)
    • How Can Women Measure Testosterone Accurately? (20:24)
    • What Is The Relationship Between Testosterone And Low Libido? (27:32)
    • What Are The Outcomes And Dosing Of Testosterone Therapy? (32:24)
    • Which Delivery Methods Work Best For Testosterone Therapy? (39:22)
    • Does Testosterone Improve Muscle Mass Or Mood? (43:46)
    • What Are The Safety Considerations For Testosterone Therapy? (47:15)
    • Compounded Versus Pharmaceutical Testosterone Therapy (52:02)
    • Research Gaps In Testosterone And How Women Can Help (58:09)
    • This episode is brought to you by:

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      Simon Hill, MSc, BSc (Hons)

      • Creator of theproof.com
      • Host of The Proof with Simon Hill
      • Author of The Proof is in the Plants
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