Spearmint Tea for PCOS: Does It Lower Testosterone? (2026 Evidence Review)

Key Takeaways

• Spearmint tea for PCOS is popular because small clinical studies suggest it can lower androgens, but expectations need to be realistic.
• Small trials found statistically significant drops in free (and sometimes total) testosterone over 5-30 days, but objective hair-score changes were not seen in 30 days.
• Not all mint is the same: Clinical evidence for lowering androgens is specific to spearmint (Mentha spicata). Peppermint is mostly studied for digestive benefits, not for PCOS-related hormone issues.
• Do not dismiss new symptoms: Acne flares or cycle changes are not proof that the tea is working.
• No proven treatment schedule: The short trials do not establish a dose or timeline for clearer skin, less hair, or regular periods.

Medical note: This is educational content, not medical advice. If you’re pregnant/trying to conceive, have liver/kidney disease, GERD, or take hormone-active or hepatotoxic meds, talk to a clinician before using spearmint therapeutically.

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Why the Internet is Obsessed with Spearmint Tea (And What Science Actually Says)

If you’ve visited PCOS forums or skincare TikTok, you’ve probably seen claims like, “This tea cleared my hormonal acne!” or “My chin hair stopped growing after drinking spearmint!”

It almost sounds too good to be true. How could a simple herbal tea help with something even specialists find challenging? I was skeptical too, so I looked into the clinical research.

A 2010 randomized trial found hormone changes after tea twice daily for 30 days. It did not find a significant improvement in objectively rated facial or body hair compared with the control group. That distinction matters: an encouraging blood test is not the same as a visible benefit.

Before choosing a product, it helps to separate what was measured from what people hope will happen. For the wider research on this herb, see our spearmint tea benefits guide.

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Spearmint Tea for PCOS: What the Studies Actually Show

Understanding Hyperandrogenism in PCOS

PCOS can involve irregular ovulation and signs of androgen excess, including unwanted hair growth. Acne or scalp hair loss alone does not prove high testosterone. The international evidence-based guideline explains why diagnosis needs a fuller clinical assessment.

Androgens are hormones normally present in women. Insulin resistance can contribute to excess androgen production and lower sex hormone-binding globulin (SHBG), leaving more testosterone unbound. Not everyone with PCOS has the same pattern.

Androgens can affect oil glands and hair follicles. That helps explain interest in anti-androgen research, but does not prove that a tea will improve these symptoms.

The Clinical Evidence: Small Studies, Real Hormonal Changes

The findings are preliminary: researchers observed hormone changes, not a complete PCOS treatment.

In the 2007 pilot, 21 women with hirsutism drank tea twice daily for five days during the follicular phase. Free testosterone decreased; total testosterone did not decrease significantly. There was no control group.

The 2010 randomized study assigned 42 women to spearmint or a control herbal tea twice daily for 30 days. Its findings included:

• Free testosterone dropped significantly (the study reported statistically significant reductions).
• Total testosterone also decreased in the spearmint group.
• Subjective improvements in quality of life related to unwanted hair growth.
• But: Objective hair measurements (Ferriman-Gallwey scores) didn’t change in 30 days.

This was a small, short trial. It cannot tell us whether continuing for months would improve symptoms or establish long-term safety.

Hair growth is slow, so longer studies would be useful. That is a reason to investigate, not a basis for promising results after three or six months.

Spearmint vs. Peppermint: Why the Difference Matters

Check the botanical name rather than relying on the word “mint.” Spearmint and peppermint are different plants, and research on one should not be presented as evidence for the other.

Peppermint (Mentha x piperita) is a hybrid plant high in menthol, a cooling compound that helps digestion and freshens breath. The clinical evidence for androgen changes is on spearmint (Mentha spicata). Peppermint is studied mainly for GI effects, not PCOS-related hyperandrogenism.

Spearmint (Mentha spicata) has a different chemical profile. Carvone is typically the dominant compound (often reported roughly ~40-80% in essential oil analyses, depending on the plant/region), while menthol is minimal.

If your tea tastes very cooling or reminds you of toothpaste, it’s probably peppermint. Spearmint has a milder, slightly sweet flavor and doesn’t have that icy feeling. Check the label for the botanical name: look for Mentha spicata, not Mentha piperita.

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What to Expect: The Timeline Nobody Talks About

Hormonal Acne: No Established Timeline

The cited tea trials did not measure acne clearance. We cannot promise improvement after one, two, or three months. If acne is painful, scarring, or persistent, seek treatment rather than waiting for tea to work.

Hirsutism: What Remains Unproven

The 30-day trial found no significant improvement in objective hair scores between groups. It does not prove that tea thins existing hairs, prevents new growth, or improves the results of laser treatment. A clinician can discuss established options for unwanted hair.

Menstrual Cycle Changes

Changes in LH or FSH do not prove restored ovulation or more regular periods. The studies do not establish either outcome. New spotting or a late period should not automatically be attributed to the tea.

Side Effects the Pretty TikToks Don’t Show

Temporary Acne Flares: Is This “Purging”?

There is no established spearmint “purging” phase. Worsening acne is not evidence that it is working, and there is no research-based reason to push through for eight weeks. Stop using it for that purpose and seek advice if symptoms worsen.

Delayed or Irregular Periods

Do not treat a delayed period as a good sign of hormonal adjustment. If pregnancy is possible, take a test; speak with your clinician about new or persistent cycle changes. The tea studies do not show that cycles normalize by the third month.

Safety Concerns: Liver, Pregnancy, Reflux, and Drug Interactions

Short tea trials and a 90-day extract safety study cannot establish safety for every person or preparation. Pregnancy, breastfeeding, existing health conditions, and medicines need individual consideration. Our spearmint tea side-effects guide explains what is known and what remains uncertain.

How to Brew Spearmint Tea

What the Studies Used

Tea twice daily was the schedule in the five-day and 30-day hormone studies. It is not an established PCOS treatment dose. More cups have not been shown to produce better results.

Brewing Technique: Why Covering Matters

This is a step many people skip, but it could make a difference.

Spearmint’s active compounds (especially carvone) are volatile. Covering while steeping is a reasonable best practice for retaining aroma compounds, but it hasn’t been proven to be a requirement for hormonal effects.

Proper brewing:

1. Use hot water (near-boiling is fine for dried spearmint).
2. Add 1 tea bag or 1-2 teaspoons of loose spearmint to your cup.
3. Pour water over the leaves and cover with a lid or small plate.
4. Steep for 5-10 minutes while covered.
5. Remove the tea bag/strain the leaves. Drink warm or let cool.

You can drink it hot or cold, but the initial brewing should be hot to extract the active compounds. If you prefer iced tea, brew hot, then refrigerate.

Timing: When to Drink

Choose a time that suits you if you enjoy the drink. No trial establishes a special benefit from a morning serving, bedtime use, or a particular phase of the cycle. If you take iron supplements, ask your pharmacist about tea timing; research on other herbal teas cannot quantify a spearmint-specific effect.

Spearmint Tea Options: Ingredients and Preparation

These products differ in format and pack size, not demonstrated PCOS effectiveness. We checked manufacturer information. None of the studies establishes that one of these brands works better for PCOS.

We do not earn commission from these links. They are ingredient references, not a clinical ranking or hands-on taste test.

FGO Organic Spearmint Tea: Tea Bags

FGO lists organic spearmint tea bags in 40- and 100-count packs. Compare current prices per serving rather than assuming bulk is always cheaper.

Traditional Medicinals Organic Spearmint: Tea Bags

Traditional Medicinals lists organic spearmint leaf, with 16 bags per box. Directions use 8 oz freshly boiled water and a covered 5–10 minute steep. These are preparation instructions, not a treatment protocol.

Pique Spearmint Herbal Tea: Instant Crystals

Pique lists organic spearmint only in instant crystals that dissolve in cold or warm water. The company states it screens for heavy metals, pesticides, and mold toxins. That is a manufacturer claim, not proof of superior health outcomes or equivalence to the studied tea.

What to Avoid

Check the ingredients: “mint” blends may include other herbs or caffeinated tea. Organic certification describes production standards, not PCOS effectiveness. Capsules and oils are not interchangeable with brewed leaves.

Other Drinks and Supplements: What to Know

There is no established spearmint combination protocol for PCOS. Evidence for an ingredient alone does not prove that adding it to tea improves results.

Green Tea

Choose green tea for its flavor if you enjoy it, but it contains caffeine and is not an established partner treatment with spearmint. Our green tea benefits guide discusses its separate evidence.

Inositol

The international PCOS guideline says inositol may be considered according to individual preferences, with limited clinical benefits. It does not recommend a specific type, dose, or combination because evidence quality is insufficient. That is not support for a spearmint–inositol regimen.

Zinc

The spearmint trials do not establish an added acne benefit from zinc. Do not add a daily supplement simply to make tea “work better.” A clinician can assess whether supplementation fits your diet and symptoms.

Who Should NOT Drink Spearmint Tea

Avoid spearmint if you have a known allergy. If you are pregnant, trying to conceive, breastfeeding, managing liver or kidney disease, or taking medicines, get individual advice before regular use for a health purpose. These precautions do not prove that a cup causes harm in every group.

Stop use and seek urgent help for breathing difficulty or swelling of the mouth or throat.

Real Talk: Will Spearmint Tea “Fix” Your PCOS?

No. The small hormone studies are interesting, but do not establish a treatment for acne, unwanted hair, infertility, or irregular cycles. If you like the tea, it may fit your routine; you do not need to commit to a months-long protocol.

Keep your usual care in place. Discuss symptom changes with your clinician instead of assuming they mean the tea is working.

Frequently Asked Questions