Prolactin (in men)
Advanced wellnessalso prl
What it isA pituitary hormone primarily known for milk production in women but present and active in men too.
DoesSuppresses gonadotropin-releasing hormone, which lowers LH/FSH and therefore testosterone. Also influences libido, refractory period after orgasm, and immune.
GoodA mid-low prolactin signals an unobstructed gonadal axis and intact libido.
BadElevated prolactin in men suppresses testosterone, causes erectile dysfunction, low libido, and possibly gynecomastia. Very high levels suggest a pituitary tumor (prolactinoma).
- Standard
- <15 ng/mL.
- Optimal
- 3–10 ng/mL (lower is good within range)
- Modifiers
- Rises with stress, sleep, recent nipple stimulation, certain medications (antipsychotics, some antidepressants).
How to optimize
- Lifestyle
- Stress management; quality sleep; address dopaminergic balance.
- Diet
- —
- Supplements
- Vitamin B6 (P5P, 25–50mg/day) and zinc may help; vitex (chasteberry) for some.
- Peptides
- —
- Drugs
- Cabergoline (dopamine agonist) for prolactinoma; identify and replace prolactin-raising medications.
Reference ranges are general adult lab norms; optimal ranges are editorial picks from the longevity literature — not medical advice. Always interpret results with your physician.
within Men's Hormones