Several plants and supplements lower androgen activity through mechanisms that overlap with spironolactone’s, and the most studied options include spearmint tea, saw palmetto, licorice root, and a compound called DIM found in cruciferous vegetables. None of them match spironolactone’s clinical potency, and the research behind most is still early-stage. But for people with mild hormonal symptoms or those who want to avoid spironolactone’s side effects, there is enough evidence to make an informed decision about what is worth trying and what is mostly hype.
Why People Look for Alternatives
Spironolactone was originally developed as a blood-pressure drug. It blocks aldosterone, a hormone that tells the kidneys to hold onto sodium and water. But it also blocks androgen receptors, which is why dermatologists prescribe it off-label for hormonal acne, excess facial hair, and androgen-driven hair loss in women.1PubMed. Antiandrogenic effect of spirolactones: mechanism of action That dual action makes it effective, but it also makes it unpredictable. Common complaints include dizziness from low blood pressure, irregular periods, breast tenderness, and frequent urination. Because spironolactone alters potassium levels, doctors require regular blood work. And because of potential harm to a developing fetus, it is not prescribed to anyone who could become pregnant without reliable contraception.2PubMed. Spironolactone in dermatology
These are the reasons most people start searching for alternatives. Some want to avoid a prescription altogether. Others are already on medications that interact with spironolactone. And some simply have symptoms mild enough that a pharmaceutical-grade anti-androgen feels like overkill. Whatever the reason, understanding what each natural option actually does, and how strong the evidence is, matters more than following internet recommendations blindly.
Spearmint Tea
Spearmint is the best-studied herbal alternative for lowering androgens, and it is the one most often recommended in online wellness spaces. A randomized controlled trial in women with polycystic ovary syndrome (PCOS) found that drinking two cups of spearmint tea daily for 30 days significantly reduced both free and total testosterone levels compared to a placebo herbal tea. Patients in the spearmint group also reported less unwanted hair growth based on their own assessments. However, objective clinical scores of hirsutism did not improve during the study period. The researchers attributed this to the study being too short, since hair follicles need several growth cycles to respond to hormonal changes.3PubMed. Spearmint herbal tea has significant anti-androgen effects in polycystic ovarian syndrome. A randomized controlled trial
That gap between blood-level changes and visible results is an important theme across all of these alternatives. A drop in testosterone on a lab report does not automatically mean your skin clears up or your hair stops thinning. Spearmint reliably shifts hormone levels, but the clinical payoff depends on how severe the underlying androgen excess is. One review concluded that spearmint has value for people whose symptoms are not extreme and who prefer to avoid spironolactone’s side effects, but acknowledged that more time and higher doses may be needed for measurable improvements.4Online Journal of Complementary & Alternative Medicine. Can Spearmint Be a Natural Alternative to Spironolactone in Treating Increased Androgen Levels?
Spearmint is also cheap and easy to incorporate. Two cups a day is the dose used in most studies. There are no reports of serious adverse effects at that level, though very high doses in animal studies have caused liver changes, so more is not necessarily better.
Saw Palmetto
Saw palmetto works through a different pathway than spironolactone. Instead of blocking the androgen receptor directly, it inhibits an enzyme called 5-alpha reductase, which converts testosterone into dihydrotestosterone (DHT). DHT is the more potent androgen responsible for much of the oil production, hair follicle shrinkage, and prostate growth that drives conditions like acne, pattern hair loss, and benign prostatic hyperplasia.
Lab studies confirm that saw palmetto extract is a concentration-dependent inhibitor of 5-alpha reductase type II.5PubMed. Potency of a novel saw palmetto ethanol extract, SPET-085, for inhibition of 5alpha-reductase II Animal and cell studies have also shown that it reduces serum DHT and testosterone levels and has anti-proliferative effects in prostate tissue.6PubMed. Saw Palmetto Extract Ameliorates Benign Prostatic Hyperplasia by Regulating 5α-Reductase and Apoptosis In Vitro and In Vivo The catch is that most clinical research on saw palmetto has focused on prostate symptoms in men, not on acne or hirsutism in women. If you are a woman looking for a spironolactone replacement for skin or hair concerns, saw palmetto has plausible mechanisms in its favor but limited clinical trial data specific to those uses. Men interested in it for hair loss have somewhat more evidence to draw from, though the results are inconsistent across studies.
Licorice Root
Licorice root contains glycyrrhizic acid, which appears to block specific enzymes involved in testosterone production. A study in healthy men found that consuming licorice daily reduced total testosterone by about a quarter after just one week.7PubMed. Licorice consumption and serum testosterone in healthy man A separate study in healthy women found that licorice reduced total serum testosterone over two months, with levels returning to normal after stopping.8PubMed. Licorice reduces serum testosterone in healthy women The proposed mechanism involves blocking 17-hydroxysteroid dehydrogenase and 17-20 lyase, both enzymes in the testosterone synthesis pathway.
Licorice is one of the more potent herbal options, but it comes with a significant downside. The same compound that lowers testosterone also mimics aldosterone, which is ironic because spironolactone blocks aldosterone. This means licorice can raise blood pressure and cause the body to retain sodium while losing potassium, essentially producing the opposite of spironolactone’s diuretic effect. People already dealing with high blood pressure, edema, or heart issues should avoid it. Even in healthy individuals, long-term or high-dose licorice use has caused serious side effects. If you decide to try it, use it in limited quantities and not as a daily long-term supplement.
DIM From Cruciferous Vegetables
DIM, short for 3,3′-diindolylmethane, forms in the gut when you digest indole-3-carbinol, a compound found in broccoli, cabbage, cauliflower, and other cruciferous vegetables.9International Journal of Botany and Horticulture Research. Qualitative Analysis of Cruciferous Vegetable Extracts Useful for Estrogen Metabolism for Diindolylmethane (DIM) In lab studies, DIM is a remarkably potent androgen receptor antagonist. It competitively blocks DHT from binding to the androgen receptor and prevents the receptor from moving into the cell nucleus, which is necessary for androgens to activate gene expression.10Journal of Biological Chemistry. Plant-derived 3,3′-Diindolylmethane is a Strong Androgen Antagonist in Human Prostate Cancer Cells This mechanism is strikingly similar to what spironolactone does at the receptor level.
A clinical study in prostate cancer patients who took a bioavailability-enhanced DIM supplement before surgery found that the androgen receptor was excluded from the cell nucleus in the vast majority of post-treatment tissue samples, a clear sign of anti-androgenic activity at the tissue level.11PubMed Central. Anti-androgenic activity of absorption-enhanced 3, 3′-diindolylmethane in prostatectomy patients Most of the DIM research is in the context of prostate cancer, not dermatology, so translating these findings to acne or hair loss requires some extrapolation. DIM supplements are widely available and generally well tolerated, but the optimal dose for skin and hair outcomes has not been established in clinical trials. You would have to eat unrealistic amounts of broccoli to get pharmacological levels of DIM from food alone, which is why supplements are necessary if you want a meaningful anti-androgen effect.
Reishi Mushroom
Reishi (Ganoderma lucidum) showed the strongest 5-alpha reductase inhibitory activity among 19 edible and medicinal mushrooms tested in one study. In animal experiments, reishi extract significantly inhibited testosterone-driven prostate growth.12PubMed. Anti-androgenic activities of Ganoderma lucidum Like saw palmetto, it targets the same enzyme that converts testosterone to DHT, but human clinical data on reishi for hormonal skin or hair concerns is essentially nonexistent. It is an interesting option to track as more research emerges, though not one you should rely on as a sole strategy right now.
Zinc and Nutrient-Based Approaches
Zinc occupies an unusual space in this conversation because it does not directly block androgens the way the herbs above do. Instead, zinc deficiency itself appears to amplify androgen activity. When zinc is low, the conversion of testosterone to DHT ramps up, which in turn drives excess oil production and inflammation in the skin. Multiple studies have found that people with acne have significantly lower serum zinc levels than people without it.13PubMed Central. Serum zinc, selenium, and vitamin D levels in patients with acne vulgaris: A case–control study An observational study of a zinc-based supplement taken for 12 weeks found significant improvement in acne lesions, with roughly four out of five participants seeing 80 to 100 percent improvement.14PubMed. An observational study of methionine-bound zinc with antioxidants for mild to moderate acne vulgaris
The zinc story is less about replacing spironolactone and more about filling a gap that makes androgen-driven symptoms worse. If your zinc levels are already adequate, supplementing more will not produce an anti-androgen effect. But if they are low, which is common with modern diets, correcting the deficiency can meaningfully reduce acne severity without touching a prescription pad.
Vitamin D follows a similar logic. In women with PCOS, vitamin D levels are inversely correlated with testosterone and insulin resistance. Lower vitamin D tracks with higher testosterone and higher DHEAS.15PubMed Central. The relationship between Vitamin D deficiency and polycystic ovary syndrome Whether supplementing vitamin D actively lowers androgens or simply removes a metabolic brake is still debated, but correcting a deficiency is low-risk and may improve the hormonal picture in women with PCOS.16PubMed Central. Vitamin D and polycystic ovary syndrome (PCOS): a review
Myo-Inositol for PCOS Specifically
If you are looking for a spironolactone alternative specifically because of PCOS, myo-inositol deserves a closer look. It is a naturally occurring sugar alcohol involved in insulin signaling, and insulin resistance is a core driver of excess androgen production in PCOS. A prospective clinical study found that myo-inositol supplementation significantly reduced luteinizing hormone, the LH-to-FSH ratio, fasting insulin levels, and insulin resistance scores.17PubMed Central. The Effectiveness of Myo-Inositol in Women With Polycystic Ovary Syndrome: A Prospective Clinical Study By improving insulin sensitivity, myo-inositol reduces the signal that tells the ovaries to overproduce testosterone in the first place.
Myo-inositol does not block androgens at the receptor level or inhibit 5-alpha reductase, so it works upstream of where spironolactone acts. For women whose high androgens are driven by insulin resistance, this upstream approach can be quite effective. For women whose androgen excess has other causes, myo-inositol is less relevant. The typical dose used in studies is 2 to 4 grams per day, often combined with a small amount of D-chiro-inositol.
Dietary Changes That Affect Androgens
Dietary interventions do not replace a drug, but they can move the needle enough to matter, especially in combination with the supplements above. Two dietary changes have the most evidence behind them.
First, lowering the glycemic load of your diet. A randomized controlled trial found that a low-glycemic-load diet not only improved acne symptoms but also reduced the free androgen index compared to a high-glycemic diet.18Journal of the American Academy of Dermatology. A low-glycemic-load diet improves symptoms in acne vulgaris patients: A randomized controlled trial In women with PCOS, a restricted-energy low-glycemic diet produced significant reductions in total testosterone and increases in sex hormone-binding globulin, which mops up free testosterone in the blood.19PubMed Central. Does a restricted energy low glycemic index diet have a different effect on overweight women with or without polycystic ovary syndrome? The mechanism is straightforward: high-glycemic foods spike insulin, and insulin drives androgen production. Eating fewer refined carbohydrates and sugars lowers insulin, which in turn lowers androgen stimulation.
Second, reducing dairy consumption. Milk increases circulating levels of insulin-like growth factor 1 (IGF-1), which stimulates 5-alpha reductase and amplifies androgen signaling in the skin.20PubMed. Role of insulin, insulin-like growth factor-1, hyperglycaemic food and milk consumption in the pathogenesis of acne vulgaris This pathway has led some researchers to describe acne as an IGF-1-mediated condition worsened by Western dietary patterns.21PubMed Central. Diseases of Civilization – Cancer, Diabetes, Obesity and Acne – the Implication of Milk, IGF-1 and mTORC1 If you are dealing with hormonal acne specifically, cutting back on dairy and refined carbohydrates is one of the few lifestyle changes with genuine mechanistic support.
What About Green Tea?
Green tea is frequently listed as a natural anti-androgen on wellness blogs, and there is a kernel of truth here, but it is smaller than most people think. When applied topically, green tea catechins do show 5-alpha reductase inhibitory and anti-inflammatory activity in human studies.22Fitoterapia. A review of phytotherapy of acne vulgaris: perspective of new pharmacological treatments However, a randomized controlled trial of green tea catechin extract supplements in postmenopausal women found no effect whatsoever on circulating sex hormones or androgen-related markers.23The Journal of Nutrition. Green Tea Catechin Extract Supplementation Does Not Influence Circulating Sex Hormones and Insulin-Like Growth Factor Axis Proteins in a Randomized Controlled Trial of Postmenopausal Women at High Risk of Breast Cancer Drinking green tea for general health is fine, but if you are counting on it to lower androgens systemically the way spironolactone does, the evidence says it will not. A green tea topical product for acne-prone skin is a different story and may be worth trying.
The Diuretic Side of Spironolactone
Most people searching for spironolactone alternatives are thinking about its anti-androgen effects. But some people take spironolactone primarily for fluid retention, and they want a natural diuretic as well. Dandelion leaf extract is the most commonly suggested herbal option. A small human study found that dandelion extract increased urination frequency within five hours of the first dose, with a significant increase in urine output after the second dose.24PubMed Central. The diuretic effect in human subjects of an extract of Taraxacum officinale folium over a single day The effect was modest and inconsistent across doses, which puts it far below spironolactone’s reliable diuretic action. If you need a potassium-sparing diuretic for a medical condition like heart failure or resistant hypertension, dandelion tea is not a substitute. For mild bloating or premenstrual water retention, it may help at the margins.
Safety Realities for Herbal Anti-Androgens
There is a widespread assumption that natural means safe, and for most of the options discussed here, the safety profile is indeed favorable at typical doses. But “natural” and “pharmacologically active” are not opposites. Any compound that genuinely lowers androgens or inhibits 5-alpha reductase is, by definition, altering your hormonal environment. That means potential side effects exist even if they tend to be milder than spironolactone’s.
Licorice root, as mentioned earlier, can raise blood pressure and disrupt electrolytes. Some botanicals can cause liver stress or interact with prescription medications, a risk that increases when people combine multiple supplements or take high doses for long periods.25PubMed Central. Botanical-induced toxicity: Liver injury and botanical-drug interactions Saw palmetto, DIM, and spearmint are generally well tolerated at studied doses, but there is less long-term safety data for any of them compared to a pharmaceutical with decades of clinical use.
The biggest safety concern is not toxicity but false confidence. If you are managing a condition that genuinely requires androgen suppression, such as severe PCOS or androgen-driven alopecia that is progressing quickly, substituting spearmint tea for spironolactone and hoping for equivalent results could mean losing ground during the months it takes to realize the natural option is not enough. A reasonable approach for many people is to try dietary changes and one or two well-supported supplements first, track symptoms and labs over three to six months, and escalate to a prescription if progress stalls. Your doctor should be part of that conversation, particularly because some of these supplements can affect the same lab values your doctor is monitoring.
Stacking Strategies
Because these natural alternatives work through different mechanisms, combining them is common and makes pharmacological sense. Spearmint lowers circulating testosterone. DIM blocks androgens at the receptor. Saw palmetto or reishi inhibit the conversion of testosterone to DHT. Zinc corrects a deficiency that amplifies DHT production. A low-glycemic diet reduces the insulin signaling that drives androgen synthesis in the first place. In theory, layering several of these could produce a cumulative anti-androgen effect that no single supplement achieves alone.
In practice, nobody has studied these combinations in rigorous clinical trials. The stacking approach is based on mechanistic reasoning, not on evidence that any specific cocktail delivers a specific outcome. If you go this route, start one supplement at a time so you can identify what helps and what causes problems. Give each addition at least four to six weeks before evaluating, since hormonal changes take time to manifest in the skin or hair. And keep in mind that the more supplements you take simultaneously, the harder it becomes to know what is doing what, and the higher the cumulative risk of interactions or side effects.