Dr. Kyle Gillett outlines clinical protocols for male hormone optimization

The brief

Dr. Kyle Gillett joins Andrew Huberman to break down the clinical realities of male hormone optimization, moving past the internet hype to focus on diagnostic blood work and foundational lifestyle habits that support long-term endocrine health.

While exogenous testosterone replacement therapy is surging in popularity among young men, Gillett warns that it is rarely appropriate or beneficial for those with normal baseline levels, urging a focus on sleep, diet, and exercise first.

On the supplement front, Gillett dispels the common myth that creatine causes hair loss. He explains how targeted compounds like L-carnitine and Tongkat Ali can naturally support hormone pathways by increasing receptor density and upregulating key enzymes.

For physical longevity, Gillett highlights the prostate health benefits of low-dose tadalafil and details scalp-level interventions for hair loss, such as topical caffeine and ketoconazole, to block DHT without systemic side effects.