Lowering testosterone with PCOS is possible through a combination of lifestyle changes, targeted supplements, and medications. The key is understanding that excess testosterone in PCOS is largely driven by high insulin levels, so strategies that improve how your body handles insulin tend to have the biggest downstream effect on androgens. Most approaches take at least three months to produce measurable changes in bloodwork, and visible improvements in symptoms like excess hair growth or acne often take longer.
Why Testosterone Runs High in PCOS
In PCOS, the ovaries are unusually sensitive to insulin. Even normal amounts of insulin can trigger the ovarian cells responsible for androgen production to ramp up testosterone output, while in women without PCOS, much higher insulin levels are needed to get the same response. When insulin resistance develops (as it does in roughly 70% of women with PCOS), chronically elevated insulin keeps stimulating those cells, creating a cycle of rising testosterone.
This is why so many effective strategies for lowering testosterone in PCOS target insulin first. Bringing insulin levels down removes the signal that’s telling the ovaries to overproduce androgens. It also explains why weight, diet, and exercise matter so much, even when testosterone is the hormone you’re focused on.
Exercise: Cardio and Weights Work Equally Well
Both resistance training and aerobic exercise lower testosterone in women with PCOS, and clinical trials show no meaningful difference between the two. In one study, women doing resistance training saw testosterone drop from about 93 to 76 ng/dL, while those doing aerobic exercise went from 109 to 87 ng/dL. The median reduction was nearly identical: 18 ng/dL for weights, 17 ng/dL for cardio. Pick whichever type of movement you’ll actually stick with, or combine both.
Interestingly, in that same trial, neither exercise type significantly improved insulin resistance scores over the study period, yet testosterone still dropped. This suggests exercise affects androgen levels through multiple pathways, not just insulin. Consistency matters more than the type of workout.
Dietary Changes That Target Insulin
Because insulin is the primary driver of excess ovarian testosterone, eating in a way that keeps blood sugar and insulin levels more stable is one of the most effective non-drug strategies. That means emphasizing foods that digest slowly: vegetables, legumes, whole grains, nuts, and protein paired with fiber at each meal. Reducing refined carbohydrates and sugary drinks has an outsized impact because those foods cause the sharpest insulin spikes.
You don’t need to follow a named diet. The core principle is simple: avoid large loads of fast-digesting carbohydrates eaten on their own. Adding fat, protein, or fiber to a meal slows glucose absorption and blunts the insulin response. Even the order you eat food in matters. Eating vegetables or protein before starchy portions of a meal has been shown to lower post-meal blood sugar.
Inositol Supplements
Inositol is one of the most studied supplements for PCOS. It exists in two forms: myo-inositol and D-chiro-inositol. A meta-analysis of nine randomized controlled trials found that inositol supplementation significantly reduced fasting insulin and insulin resistance scores, with a trend toward lower testosterone as well. The typical dose used in trials is 2 grams of inositol taken twice daily.
The ratio between the two forms matters. A clinical trial testing seven different ratios head-to-head found that a 40:1 ratio of myo-inositol to D-chiro-inositol was the most effective for restoring ovulation and normalizing testosterone, LH, and other hormonal markers. This matches the natural ratio found in the bloodstream of women without PCOS. Most quality supplements now use this 40:1 formulation. Results in the studies typically appeared after 12 to 24 weeks of consistent use.
Spearmint Tea
Spearmint tea has mild anti-androgen properties. In a 30-day randomized controlled trial, women with PCOS who drank spearmint tea twice daily had significant reductions in both free and total testosterone compared to a placebo herbal tea. It’s not a replacement for other interventions, but it’s a low-risk addition. Two cups per day was the dose tested.
Zinc for Androgen-Related Symptoms
Zinc supplementation shows a specific and somewhat surprising pattern in PCOS. A double-blind trial gave women 50 mg of elemental zinc daily for eight weeks. Zinc did not change hormonal profiles on bloodwork, but it significantly reduced hirsutism scores (a standardized measure of excess hair growth). The zinc group’s hirsutism score dropped by an average of 1.71 points compared to just 0.29 in the placebo group. This suggests zinc may block the effects of testosterone at the tissue level, even without lowering circulating levels. Hair loss related to androgens also improved.
Medications That Lower Androgens
When lifestyle and supplement approaches aren’t enough, several prescription options directly target testosterone. Combined oral contraceptive pills are the most commonly prescribed. They work in two ways: the progestin component suppresses the brain signal (LH) that drives ovarian androgen production, while the estrogen component increases a protein called SHBG that binds testosterone and makes it inactive.
Not all birth control pills are equal for this purpose. Fourth-generation progestins have anti-androgenic activity, meaning they actively oppose testosterone’s effects in addition to lowering its production. Cyproterone acetate has the strongest anti-androgen effect of any progestin. Drospirenone has about 30% of that activity, and dienogest about 40%. However, pills containing cyproterone acetate carry a higher risk of blood clots, so they’re generally reserved for moderate to severe hirsutism or acne rather than used as a first option.
Spironolactone is another common prescription, used off-label at doses of 100 to 200 mg daily. It blocks androgen receptors directly, preventing testosterone from exerting its effects on skin and hair follicles. It’s almost always prescribed alongside contraception because it can cause birth defects. The combination of a birth control pill plus spironolactone is one of the most effective medical regimens for managing androgen-driven symptoms in PCOS.
How Long Results Take
Testosterone levels on bloodwork can shift within one to three months. A trial of resveratrol, for example, showed a 23% reduction in total testosterone after three months. Inositol trials typically measure outcomes at 12 to 24 weeks. Expect a similar timeframe for any new supplement, medication, or lifestyle change to show up in lab results.
Visible symptom improvement takes longer. Acne often responds within three to six months. Hirsutism is the slowest to change because hair follicles have a long growth cycle. Existing hairs won’t fall out when testosterone drops; they simply grow back finer and lighter over time. Most guidelines suggest waiting at least six months before judging whether a treatment is working for excess hair growth, and full results can take 12 months or more. Many women combine hormonal treatment with hair removal methods during this waiting period.
Combining Approaches
The most effective strategy stacks several of these interventions together. Exercise and dietary changes address insulin resistance at the root level. Inositol supports insulin signaling in a complementary way. A birth control pill or spironolactone adds direct hormonal control when needed. Spearmint tea and zinc are low-cost additions that may provide incremental benefit. Each layer chips away at the problem from a different angle, and because PCOS involves multiple overlapping mechanisms, a multi-pronged approach consistently outperforms any single intervention.