No fertility tea has been proven to help anyone conceive. The strongest evidence in this area is a 2025 meta-analysis of 37 randomised trials in 10,776 women undergoing assisted reproduction: herbal medicine added to treatment was associated with an 18% higher clinical pregnancy rate (RR 1.184).
The herbal trials in that analysis tested Chinese herbal medicines made as powders, pills, granules, decoctions and ointments from traditional formulas and prescribed by a practitioner, not a commercial tea bag. This article separates three things people conflate: teas that measurably move hormones, herbal formulas with real IVF trial data, and retail “fertility tea” blends with almost none. Figures come from randomised trials and meta-analyses indexed in PubMed, plus patient guidance from the US National Center for Complementary and Integrative Health, NCCIH and the American College of Obstetricians and Gynecologists, ACOG. ProIVF sells no supplements and has no relationship with any brand or herbal practitioner named here.
Do Fertility Teas Change Hormones?
Yes, in measurable amounts: three small trials of spearmint and mixed herbal teas reported significant hormone shifts within five to ninety days, two of them randomised against a placebo tea. That is the problem, not the promise.
| Trial | Population | Dose | What changed |
|---|---|---|---|
| Akdoğan 2007, Phytother Res 21(5):444-447 | 21 hirsute women (12 with PCOS, 9 idiopathic) | One cup of spearmint tea twice daily for 5 days | Free testosterone fell significantly; LH, FSH and oestradiol all rose significantly; total testosterone and DHEA-S unchanged |
| Grant 2010, Phytother Res 24(2):186-188 | 42 women randomised (41 completed), two centres | Spearmint tea twice daily for 30 days vs placebo herbal tea | Free and total testosterone fell significantly (p < 0.05); self-rated hirsutism improved (p < 0.05); objective Ferriman-Gallwey score did not (p = 0.12) |
| Majeed 2025, Ann Med Surg 87(12):8326-8333 | 60 women with PCOS randomised; only 36 completed | Marjoram + cinnamon tea twice daily for 3 months | In the herbal group FSH rose (p = 0.032) and AMH fell (p = 0.003) — but AMH also fell in the placebo group (p = 0.023) |
“Spearmint can be an alternative to antiandrogenic treatment for mild hirsutism. Further studies are needed to test the reliability of these results and the availability of spearmint as a drug for hirsutism.” — Akdoğan et al., Phytotherapy Research, 2007
The limits of these three trials belong on the table too: the 2007 study ran for five days with no placebo arm, and in the 2025 trial 24 of 60 randomised women dropped out while the placebo group’s AMH moved in the same direction. More importantly, none of the three measured pregnancy. A tea that lowers free testosterone and raises LH is still doing something, and “doing something” is why fertility clinics ask you to stop herbs before a cycle rather than assuming a cup of tea is neutral.
Does Chinese Herbal Medicine Improve IVF Outcomes?
The trial evidence is positive but modest, and it concerns prescribed herbal medicine, not retail tea.
The 2025 systematic review searched 11 databases through 31 March 2023 (PROSPERO CRD42023411712) and pooled 37 randomised trials of 10,776 women aged 29–38 with PCOS, tubal blockage, diminished ovarian reserve or unexplained infertility.
- Acupuncture improved clinical pregnancy (RR 1.316, 95% CI 1.171–1.480) and live birth (RR 1.287, 95% CI 1.081–1.533); our acupuncture and IVF guide covers that evidence separately.
- Herbal medicine improved clinical pregnancy (RR 1.184) and live birth (RR 1.147), and in subgroup analysis true acupuncture and true herbal medicine both outperformed sham or placebo.
Read that number honestly: RR 1.184 and the “18% higher” in the introduction are relative, not absolute. An 18% relative gain is not 18 extra successes per 100 women treated, and the absolute gain depends on your age and baseline success rate.
What Do the Largest Individual Herbal Trials Show?
The two largest individual herbal trials show why averages mislead. A post-hoc analysis of a 2,265-woman double-blind RCT run at 19 IVF centres found the Zishen Yutai pill raised clinical pregnancy rates versus placebo, with implantation and biochemical-pregnancy benefits concentrated in women aged 35+ and those with BMI over 24.
A separate 886-woman trial of Peiyu granules reported the opposite shape of result: early miscarriage fell from 22.4% to 12.8% (RR 0.51, 95% CI 0.27–0.95, p = 0.02), while clinical intrauterine pregnancy did not improve: 30.0% versus 35.2% (RR 0.79, 95% CI 0.60–1.05, p = 0.10).
That pattern mirrors what happened with male antioxidant supplements: a 2022 Cochrane review of 90 trials found a live-birth OR of 1.43 alongside an explicit “very low certainty” rating. Effect estimates in reproductive herbal research tend to shrink as trial quality rises, and most trials in this field were conducted at single-country centres with practitioner-blinded designs.
What Is Actually in a Fertility Tea Blend?
Most retail blends share the same short ingredient list, and every ingredient carries a claim that outruns its evidence.
| Ingredient | Claim made by sellers | Evidence we could locate |
|---|---|---|
| Red raspberry leaf | ”Tones the uterus” | No randomised fertility trial appeared in our PubMed searches of this topic as of September 2026 |
| Nettle leaf | ”Supports progesterone” | No randomised fertility trial located; nutrient content is often substituted for clinical evidence |
| Rose hip | ”Antioxidant for eggs” | Antioxidant chemistry in vitro, no human fertility endpoint located |
| Spearmint | ”Balances hormones” | Two small trials in hirsutism and PCOS (n = 21 uncontrolled, n = 42 randomised), measuring testosterone and hirsutism scores — not pregnancy |
| Cinnamon / marjoram | ”Improves insulin sensitivity, AMH” | One 2025 PCOS RCT (n = 60, 36 completed) with a placebo-group AMH change in the same direction |
| Dong quai, vitex, ginseng | ”Regulate cycles” | Hormonally active in traditional use; vitex acts on prolactin via dopamine pathways, which is a reason to disclose it before stimulation |
Prescription Chinese formulas are a different product category. The trials above used 10-ingredient decoctions and patent pills such as Zishen Yutai and Peiyu, prescribed according to pattern diagnosis and matched to a placebo in blinded designs. That is exactly why their results cannot be transferred to a US$25 pouch of dried leaves.
Are Fertility Teas Safe During an IVF Cycle?
The specific risk is interaction first, and dose-related toxicity second. A 2003 randomised controlled trial gave 18 healthy women a low-dose oral contraceptive plus St John’s wort extract (300 mg twice or three times daily): the progestogen metabolite’s exposure fell 43.9% (AUC 31.2 → 17.7 ng·ml⁻¹·h), and intracyclic bleeding rose from 6/17 (35%) on the contraceptive alone to 13/17 (77%) and 15/17 (88%) with the herb.
Oestrogen levels were unchanged and no participant ovulated, so this is a pharmacokinetic signal rather than a contraceptive failure. It still documents the mechanism, CYP3A4 and P-gp induction, that makes clinics cautious about herbal products taken alongside the exogenous progesterone and oestradiol of a stimulated cycle.
Three further safety points:
- Concentrated extracts are not brewed tea. A 2014 case report in Journal of Ethnopharmacology describes severe acute hepatitis in a 63-year-old woman taking green tea capsules, causality rated “probable” on the CIOMS/RUCAM scale, with recovery after stopping the product and albumin dialysis.
- Hormonally active is the selling point. The 2007 spearmint trial moved LH, FSH and oestradiol within five days, and the 2025 marjoram-cinnamon trial reported an FSH change. Both act on the same axes your clinic is deliberately controlling with injections and trigger timing.
- Disclosure is the missing step. In the prospective Infertility Outcomes Program study of 428 couples, 29% had used complementary or alternative therapy within 18 months, 22% acupuncture and 17% herbal medicine, and use was independently linked to household income of US$200,000+ (OR 2.8) and to not achieving a pregnancy (OR 2.3). A 2025 study of 271 infertility couples found 10% of women and 5.5% of men used such treatments, more often the longer infertility had lasted.
Three Patients, Three Different Answers
Three patients, three positions on the evidence map: a retail blend that changed nothing measurable, a prescribed formula that matched the trial data, and symptom relief mistaken for fertility.
The following patient stories are shared with consent. Names and identifying details have been changed to protect privacy.
Case 1: Yuki, 33 — three months of a retail blend before IVF, Shenzhen
Yuki spent about ¥1,100 on imported fertility tea blends plus ¥9,800 on her first stimulation cycle. “I drank two cups a day and told myself it was just tea,” she said.
Her clinic’s anaesthesiologist asked at the pre-retrieval review what supplements she took, and she stopped everything ten days before egg collection: 9 eggs retrieved, 4 fertilised, one transfer that did not implant. “The tea was the cheapest part of my plan and the one thing nobody could tell me the dose of.”
Case 2: Wei, 37 — a prescribed formula inside the cycle, Jinan, second transfer
Wei’s centre runs an integrated programme, and she took a practitioner-prescribed formula alongside her transfer for about ¥2,600 across two months on top of a ¥45,000 cycle. “My doctor wrote it down in the same chart as the progesterone, and told me which days to stop before the blood test,” she said.
She conceived on that transfer and delivered a daughter at 38 weeks. “It was prescribed, dosed and documented — that is the version with trial data, not the shop version.”
Case 3: Hana, 29 — spearmint tea for PCOS symptoms, Ahmedabad
Hana, who has PCOS and had been trying for two years, drank spearmint tea daily for five months, spending roughly US$40, and continued metformin prescribed by her GP. “My skin improved and my cycles came closer together, so I assumed the tea did it,” she said.
Her AMH and antral follicle count were unchanged at review, and she conceived after letrozole induction at month eight. “The tea changed how I felt, the tablets changed ovulation. I stopped pretending one caused the other.”
FAQ
Q: What is the best fertility tea to get pregnant?
None has evidence for pregnancy. The 2025 meta-analysis of 37 trials found benefits only for prescribed herbal medicine added to ART (clinical pregnancy RR 1.184, live birth RR 1.147), and no trial of a retail tea blend used pregnancy as an endpoint.
Q: Does raspberry leaf tea help you get pregnant?
There is no human fertility trial supporting it. Our PubMed searches as of September 2026 located no randomised trial of red raspberry leaf for conception, which is a claim-gap rather than proof of harm.
Q: Does spearmint tea help PCOS?
It lowers androgens modestly without proven reproductive benefit. In the 2010 trial of 42 women drinking spearmint tea twice daily for 30 days, free and total testosterone fell significantly (p < 0.05), but the objective hirsutism score did not improve (p = 0.12) and pregnancy was not measured.
Q: Can I drink herbal tea during an IVF cycle?
Ask your clinic before any cycle, and expect a “stop” instruction for stimulation. The mechanism that concerns them is documented: in an 18-woman randomised trial, St John’s wort reduced progestogen exposure by 43.9% and raised intracyclic bleeding from 35% to as much as 88%.
Q: Do fertility teas have side effects?
Yes, and dose matters. A 63-year-old woman developed severe probable herbal-induced hepatitis from concentrated green tea capsules in a 2014 published case report, recovering after discontinuation and albumin dialysis, while brewed tea at culinary doses carries far lower exposure than capsules or extracts.
Q: How many IVF patients use herbal treatments?
About 1 in 6 in published cohorts. Of 428 couples followed for 18 months in a US-led multicentre study, 29% used complementary therapy and 17% specifically used herbal medicine; a 2025 study of 271 couples found 10% of women and 5.5% of men.
Q: Should I tell my fertility doctor about the tea I drink?
Yes, and be specific about brand and days taken. Even supervised herbal trials struggle, with 24 of 60 women (40%) dropping out before completion in the 2025 PCOS tea trial, and unsupervised home use is harder for your doctor to interpret because outcomes depend on what you actually took and when.
Planning Your Next Step
Fertility tea is a low-information decision with a high-disclosure requirement: a cup of spearmint or raspberry leaf tea is unlikely to help you conceive, and the herbs that reliably affect hormones are the same ones your clinic is trying to control during stimulation. Keep the ritual if you enjoy it, dose nothing concentrated, and write every product into the medication list you hand your doctor before the cycle starts: tea, capsule, pill, all of it.
Our fertility supplements guide reviews the nutrients with actual randomised data, and the IVF diet guide covers what to change across each phase of treatment. For PCOS specifically, see PCOS and IVF. If you are comparing clinics that integrate traditional medicine into ART protocols, our fertility clinic directory lets you filter by services and country, or contact our team for a shortlist.
This article was written by the ProIVF Medical Editorial Team and reviewed by the ProIVF Medical Advisory Board. It draws on randomised trials and a PROSPERO-registered meta-analysis indexed in PubMed, in Phytotherapy Research, Frontiers in Endocrinology, Annals of Medicine and Surgery, Fertility and Sterility, Journal of Ethnopharmacology, British Journal of Clinical Pharmacology and Healthcare, plus public patient guidance from NCCIH and ACOG. ProIVF has no commercial relationship with any tea brand, herbal product, clinic or practitioner mentioned.
Last updated: September 22, 2026. This article is for educational purposes and does not replace individualised medical advice. Always follow the instructions of your fertility clinic and physician.
