Research review
What does skullcap do for men? What the research does and doesn't show
There's no research testing skullcap in "men" as its own category. Neither of the two human trials reported results by sex, and no study has tested skullcap for testosterone, prostate health, or any other male-specific outcome.
There's no research testing skullcap in "men" as its own category. Neither of the two human trials reported results by sex, and no study of either species has tested skullcap for testosterone, prostate health, or any other outcome specific to men.
What the evidence doesn't support
It doesn't support a "skullcap for men" effect distinct from the general research on the herb, because no trial has ever broken results out by sex or enrolled men as a defined study group. It doesn't support skullcap for testosterone, muscle, prostate health, or sexual function — nothing has tested any of those outcomes, for either species. That's a gap in what's been studied, not a finding that skullcap does or doesn't do something for men specifically.
What the research found
Skullcap's two controlled human trials — a 2014 randomized crossover trial of 43 healthy adults and an earlier 2003 trial in healthy volunteers — describe their samples as "healthy adults" and "healthy volunteers" without reporting a sex breakdown in the published materials. Both measured mood and anxiety-scale outcomes, not anything specific to men. Neither trial, and no other published skullcap research, has looked at testosterone, prostate markers, muscle, or sexual function in men.
Chinese skullcap's research base is separate and almost entirely lab and animal work on isolated compounds, mainly baicalin, covering drug-enzyme interactions and, in unrelated studies, hair-follicle signaling in cells and mice. None of it addresses a male-specific health outcome. See skullcap and medications: what to check and does skullcap help hair growth? for what those separate lines of research actually found.
Questions people ask
What does skullcap do for men?
There's no research answering this specifically. Neither human trial reported results by sex, and no trial has tested a male-specific outcome like testosterone or prostate health.
Does skullcap affect testosterone?
Not tested. No trial, in either species, has measured skullcap's effect on testosterone or any other hormone in men.
Is skullcap good for the prostate?
No research addresses this. Prostate health hasn't been studied as an outcome for skullcap, of either species, in any published trial.
How much skullcap should men take?
No dose has been established specifically for men. The only figure with a controlled human trial behind it — 350 mg of American skullcap, three times a day — comes from a mixed sample with no reported sex breakdown. See how much skullcap should you take a day?.
Does "skullcap for men" mean the herb, or the hat?
Both terms exist. A skullcap is also a close-fitting cap, unrelated to the plant covered on this page. If you were looking for headwear, this article won't help — it's specifically about Scutellaria, the herb.
When to talk to a doctor
Low testosterone, prostate symptoms, or any other men's-health concern are worth a doctor's evaluation with actual testing, not a supplement search — nothing in the research above supports skullcap as a substitute for that. If you take a prescription medication, talk to a doctor before adding any supplement.
Related reading: what is skullcap, skullcap benefits: what the research does and doesn't show, and skullcap and medications: what to check.
Sources
- American Skullcap (Scutellaria lateriflora): a randomised, double-blind placebo-controlled crossover study of its effects on mood in healthy volunteers A 2014 randomized trial found no significant difference between American skullcap and placebo on a standard anxiety scale, though a separate mood measure improved; the trial had carryover and baseline-imbalance limitations.
- An investigation into the efficacy of Scutellaria lateriflora in healthy volunteers A 2003 double-blind, placebo-controlled trial in healthy volunteers reported an anxiety-reducing effect for American skullcap, though the paper itself noted ongoing controversy over whether the herb works, and its abstract doesn't state the dose used.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.