Blog
Adaptogens for Men: What the Research Says
Adaptogens are herbs sold to help the body cope with stress. For men, the two best known are ashwagandha and maca. Both have limited human data. Ashwagandha shows possible benefit for stress and sleep, and maca has only a few small trials for sexual function. Neither source we read says either herb improves erections.
Written by the Stallion Power label deskUpdated · 4 min read
What are adaptogens for men?
Adaptogen is a sales word for plants said to help you handle stress. It is not a medical or regulatory category.
None of the medical sources we read defines the word, so treat it as marketing. The two herbs most often sold to men under it are ashwagandha and maca. The pitch is that less stress means better energy, mood and drive. That chain has weak links, as the sources below show.
| Point | Ashwagandha | Maca |
|---|---|---|
| Human data | Limited; stress and anxiety studies suggest possible benefit, but better evidence is needed (MSK, Ashwagandha) | Only a few small human trials (MSK, Maca) |
| Sexual function | Sources do not say it improves erections (MSK, Ashwagandha) (NCCIH, Ashwagandha) | Review found limited evidence (Shin 2010, Maca systematic review) |
| Stress or sleep | Some preparations may help insomnia and stress (NCCIH, Ashwagandha) | Not covered in our sources |
| Main caution | Rare liver injury cases (NIH LiverTox, Ashwagandha) | Can interfere with testosterone tests (MSK, Maca) |
What does ashwagandha show for stress and libido?
NCCIH says some preparations may help with insomnia and stress, while evidence on anxiety is unclear. It adds that limited evidence suggests taking it for 2 to 4 months may raise testosterone and improve sperm quality (NCCIH, Ashwagandha). The same page says it may be safe short term, up to 3 months, and that long-term safety is not established. It does not say ashwagandha improves erections (NCCIH, Ashwagandha).
The cautions are real.
- Liver injury has been reported with commercial products; onset is usually 2 to 12 weeks after starting (NIH LiverTox, Ashwagandha).
- Not recommended with thyroid or autoimmune disorders, and it may interact with diabetes, blood pressure and sedative medicines (NCCIH, Ashwagandha).
- Men with hormone-sensitive prostate cancer should avoid it (MSK, Ashwagandha) (NCCIH, Ashwagandha).
Typical product doses are 150 to 600 mg once to three times daily (NIH LiverTox, Ashwagandha). Read more on our ashwagandha page.
What does maca show?
MSK says only a few small human trials exist. For men, preliminary findings suggest a possible improvement in subjective sexual well-being, while semen results are mixed (MSK, Maca). A systematic review found four randomized trials. Two reported significant positive effects, one in cyclists found none, and one in men with erectile dysfunction showed an effect on a questionnaire score. The authors still concluded the evidence was limited (Shin 2010, Maca systematic review).
The two sources give no dose we can quote. Maca may also interfere with testosterone immunoassays, so tell your provider before any lab test (MSK, Maca). Details are on the maca root page.
Small trials and mixed results are a reason to be curious, not a reason to expect a change. They do not show an herb treats low libido or erectile dysfunction.
Stallion Power: from $49 a bottle30 gummies a bottle · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsHow this applies to Stallion Power
The label lists maca extract in place 2 and ashwagandha in place 6 of an 82 mg blend. Under the descending-order rule (21 CFR 101.36, Supplement Facts), maca is at most 41 mg by plain math, or 33.5 mg by tighter math, and ashwagandha is at most 5 mg. The split is not printed. These are ceilings from arithmetic, not lab results. Compare 5 mg with the 150 to 600 mg typical product dose (NIH LiverTox, Ashwagandha), and you see why trial results on ashwagandha do not carry over to the gummy.
If you take thyroid, diabetes, blood pressure, sedative or any other medicine, or you are pregnant, talk to your doctor before using any adaptogen. Keep taking prescribed medicine.
Next step: if stress or low drive is the real issue, track sleep and mood for two weeks and bring the notes to a clinician. More reading sits in the guides hub.
Who wrote this01
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, FTC, NIDDK, AHA and peer-reviewed sources.
Last updated . See our editorial standards and how we check reviews. This website is run by Gostallionpower, a Stallion Power U.S. merchant desk, not by the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
Keep reading
More Stallion Power pages
Stallion Power U.S. merchant desk
Ready to try Stallion Power?
Check your medicines first, then pick a pack. Three or six bottles ship free and cost less per bottle, and every pack carries the 60-day money-back guarantee.
- Order on the sales-page checkout
- 60-day money-back guarantee
- Delivery up to 60 days, per the sales page