Several supplements show promise for improving sexual desire and function in women, though the strength of evidence varies. The best-studied options include ashwagandha, maca root, tribulus terrestris, and fenugreek, each working through a different mechanism. Which ones are worth trying depends on what’s driving the low libido in the first place: stress, hormonal shifts, poor blood flow, or nutritional gaps that quietly drain energy and desire.
Ashwagandha for Stress-Related Low Desire
Chronic stress is one of the most common libido killers in women, and ashwagandha targets this directly. Elevated cortisol, the body’s primary stress hormone, interferes with the production of sex hormones and dampens arousal. Ashwagandha lowers cortisol levels, restores healthier adrenal function, and calms the nervous system’s fight-or-flight response.
In a pilot study of otherwise healthy women with sexual dysfunction, a standardized ashwagandha root extract (sold as KSM-66) produced significant improvements in arousal, lubrication, orgasm, satisfaction, and the number of successful sexual encounters compared to placebo. These improvements were measurable by four weeks and continued to build through the eight-week study period. If stress, anxiety, or feeling “wired but tired” sounds familiar, ashwagandha is one of the more evidence-backed starting points.
Maca Root for General Desire
Maca root, a Peruvian plant related to broccoli and radishes, has a long traditional reputation as a sexual tonic. Clinical research supports this to a degree, particularly for women taking antidepressants. In a double-blind trial of people (mostly women) with antidepressant-induced sexual dysfunction, 3 grams per day of maca significantly improved sexual function scores. The lower dose of 1.5 grams per day did not produce the same effect, suggesting the dose matters.
Libido specifically improved at a statistically significant level across the study. Maca doesn’t appear to work through hormones directly, which makes it an interesting option for women who can’t or don’t want to take anything that alters hormone levels. It’s generally well tolerated, though it may take several weeks of consistent use to notice a difference.
Tribulus Terrestris for Arousal and Satisfaction
Tribulus terrestris, a flowering plant used in traditional medicine across several cultures, has been studied in both premenopausal and postmenopausal women. After one to three months of use, women in clinical trials showed significant increases in overall sexual function scores compared to placebo.
The results are nuanced, though. In premenopausal women, tribulus significantly improved arousal and satisfaction but did not significantly improve desire on its own. For postmenopausal women, one study found significant improvement across all domains of sexual function. The overall certainty of this evidence is rated very low, meaning the results are encouraging but not yet definitive. If arousal and physical response are more of an issue than desire itself, tribulus may be worth considering.
Fenugreek Extract for Hormonal Support
Fenugreek, specifically a standardized extract called Libifem, has been shown to improve sexual function in both pre- and postmenopausal women. The proposed mechanism involves compounds called furostanol saponins, which can bind to estrogen receptors and influence estrogen-responsive pathways. Fenugreek has also been shown to increase free estrogen and testosterone levels in women in some research.
That said, not all studies confirm the testosterone effect. One eight-week trial found no significant changes in testosterone levels with fenugreek supplementation, with all values staying within normal range. The sexual function improvements may come through estrogen activity or other pathways not yet fully understood. Fenugreek is widely available and generally considered safe, but because it interacts with hormone receptors, women with hormone-sensitive conditions should be cautious.
L-Arginine for Physical Arousal
L-arginine takes a completely different approach. It’s an amino acid your body converts into nitric oxide, the same molecule that drives the mechanism behind common erectile dysfunction drugs. In women, nitric oxide relaxes smooth muscle tissue in the vaginal walls and clitoris, increasing blood flow and engorgement. This leads to better lubrication, greater physical sensitivity, and improved arousal response.
One study found that a combination treatment including L-arginine produced a statistically significant increase in vaginal blood flow compared to placebo. The effect was most notable in postmenopausal women with arousal difficulties. L-arginine tends to work better for physical arousal issues (difficulty with lubrication, reduced sensation) than for low mental desire. It’s often combined with other ingredients in commercial supplements, and the combination approach appears to perform better than L-arginine alone.
DHEA: Potent but Complicated
DHEA is a hormone your adrenal glands produce that gets converted into both testosterone and estrogen. It’s available over the counter in many countries, but it functions more like a hormone replacement than a typical supplement. In studies of premenopausal women with low DHEA levels, 50 mg daily increased the frequency of sexual thoughts, sexual interest, and satisfaction. However, a lower dose of 25 mg in women with adrenal insufficiency failed to improve sexual function while still causing side effects like changes in body odor and scalp itching.
The physiologic dose for women is considered to be around 25 mg per day, but even at this level, androgenic side effects like acne and increased facial or body hair are more common than with placebo. DHEA is also converted to estradiol, making it contraindicated for women with a history of breast cancer. This is not a casual supplement to experiment with. It’s best approached with a healthcare provider who can check your baseline DHEA levels and monitor for side effects.
Nutritional Deficiencies That Quietly Lower Libido
Sometimes the issue isn’t about adding a specialty supplement. It’s about filling a gap. Iron deficiency anemia, which is remarkably common in women of reproductive age, causes fatigue, anxiety, and reduced mental and physical capacity. These symptoms alone can tank sexual interest. Research also shows that low ferritin levels (your body’s iron stores) have an inverse relationship with testosterone, sex hormone-binding protein, and free testosterone. Low testosterone in women is associated with reduced sexual desire and satisfaction. If you’re experiencing heavy periods, fatigue, or brain fog alongside low libido, checking your iron levels is a practical first step.
Zinc plays a supporting role in reproductive hormone balance as well. It’s involved in maintaining normal testosterone homeostasis, and severe zinc deficiency has been linked to delayed sexual development in young women. The relationship between zinc supplementation and hormonal balance in women isn’t as clearly established as it is in men, but ensuring adequate zinc intake through diet or a basic multivitamin removes one potential bottleneck. Good dietary sources include oysters, red meat, pumpkin seeds, and lentils.
Safety Considerations
Most of the supplements discussed here are well tolerated at standard doses, but interactions exist. Anything that increases blood flow (like L-arginine) should be used carefully alongside blood pressure medications. Fenugreek and DHEA both influence hormone levels and could theoretically interact with hormonal birth control, though clinical data on this specific interaction is limited. Ashwagandha may enhance the sedative effects of certain medications.
The supplement industry is also loosely regulated, and some sexual enhancement products have been found to contain undisclosed pharmaceutical ingredients, including compounds related to prescription erectile dysfunction drugs. These hidden ingredients carry serious risks, particularly dangerous drops in blood pressure when combined with nitrate medications. Sticking with reputable brands that provide third-party testing certificates reduces this risk significantly.
Women taking antidepressants face a specific challenge, since many of these medications directly cause sexual dysfunction. Maca root has the most relevant evidence for this situation. Ashwagandha’s stress-reducing properties may also help, but if you’re on an SSRI or SNRI, discuss any new supplement with the prescriber to avoid interactions that could affect how your medication is metabolized.