How to Lower Estrogen While on Finasteride: Balancing Hormone Levels for Hair Health

WrittenbyLuat Duong
Last updated

Finasteride, a popular medication used to treat male pattern baldness, can have an impact on estrogen levels in the body. As some users may experience undesirable side effects related to increased estrogen, finding ways to lower estrogen while taking finasteride becomes a relevant concern. In this comprehensive guide, we'll explore the relationship between finasteride, estrogen, and the strategies you can employ to help manage estrogen levels while on this hair loss treatment.

How to Lower Estrogen While on Finasteride

Finasteride works by inhibiting the enzyme 5α-reductase, which is responsible for converting testosterone into dihydrotestosterone (DHT). While this mechanism helps to reduce DHT and combat hair loss, it can also lead to an increase in estrogen levels in some individuals.

The Connection Between Finasteride and Estrogen

When finasteride inhibits 5α-reductase, it not only reduces DHT but also alters the balance of other sex hormones, including estrogen. As testosterone levels are maintained or even increased due to the reduced conversion to DHT, the body may compensate by converting more testosterone into estrogen through the action of the enzyme aromatase.

This increased estrogen can lead to a range of side effects, such as gynecomastia (enlarged male breasts), water retention, and mood changes. For some individuals, managing these estrogen-related side effects becomes an important aspect of their finasteride treatment.

Strategies to Lower Estrogen While on Finasteride

If you're experiencing estrogen-related side effects while taking finasteride, there are several strategies you can explore to help lower your estrogen levels:

Dietary Modifications

Certain dietary choices can influence estrogen levels. Consider incorporating the following foods and supplements into your diet:

  • Cruciferous Vegetables: Vegetables like broccoli, cauliflower, and kale contain compounds called indole-3-carbinol (I3C) and diindolylmethane (DIM), which can help metabolize and eliminate excess estrogen.
  • Flaxseeds: Flaxseeds are a rich source of lignans, which can help bind to and eliminate estrogen from the body.
  • Green Tea: Green tea contains catechins, such as EGCG, which can inhibit the activity of the aromatase enzyme, reducing estrogen production.
  • Saw Palmetto: This herb has been shown to have anti-estrogenic properties and may help counteract the estrogen-increasing effects of finasteride.

Supplements and Medications

In addition to dietary changes, certain supplements and medications can also help lower estrogen levels while on finasteride:

  • Aromatase Inhibitors: Medications or supplements that inhibit the aromatase enzyme, such as anastrozole or exemestane, can help reduce the conversion of testosterone to estrogen.
  • Selective Estrogen Receptor Modulators (SERMs): Drugs like tamoxifen or raloxifene can selectively block the action of estrogen in certain tissues, which may help mitigate estrogen-related side effects.
  • Zinc: Zinc is an essential mineral that can help regulate the activity of 5α-reductase and aromatase, potentially contributing to lower estrogen levels.
  • Boron: This mineral has been shown to have anti-estrogenic properties and may help balance hormone levels.

It's important to note that the use of any supplements or medications should be discussed with a healthcare professional, as they may interact with finasteride or have other potential side effects.

Lifestyle Modifications

In addition to dietary and supplemental approaches, certain lifestyle changes can also help lower estrogen levels:

  • Exercise: Regular physical activity, especially strength training, can help regulate hormone balance and potentially reduce estrogen levels.
  • Stress Management: Chronic stress can contribute to hormonal imbalances, including elevated estrogen. Practicing stress-reducing techniques, such as meditation, yoga, or deep breathing, may help mitigate this effect.
  • Weight Management: Maintaining a healthy body weight can be beneficial, as excess body fat is associated with increased estrogen production.

Monitoring and Adjusting Your Approach

When attempting to lower estrogen levels while on finasteride, it's crucial to closely monitor your body's response and adjust your approach accordingly. This may involve regular blood tests to assess your hormone levels and make any necessary changes to your dietary, supplemental, or lifestyle interventions.

It's important to work closely with a healthcare professional, such as a dermatologist or endocrinologist, to ensure that your efforts to lower estrogen are effective and safe. They can provide personalized guidance, monitor your progress, and make any necessary adjustments to your finasteride treatment or other interventions.

Potential Risks and Considerations

While the strategies outlined above can be effective in lowering estrogen levels while on finasteride, it's crucial to approach them with caution and under the guidance of a healthcare professional. Some potential risks and considerations include:

  • Interactions with Medications: Certain supplements or medications used to lower estrogen may interact with finasteride or other medications you're taking. Your healthcare provider can help you navigate these potential interactions.
  • Potential Side Effects: Some interventions, such as the use of aromatase inhibitors or SERMs, can have their own set of side effects that need to be monitored and managed.
  • Hormonal Imbalances: Attempting to lower estrogen too aggressively can lead to hormonal imbalances, which may have negative consequences. It's important to find a balanced approach that addresses the estrogen-related side effects without significantly disrupting your overall hormonal profile.


Navigating the relationship between finasteride and estrogen can be a complex and individualized process. By incorporating dietary modifications, targeted supplements, and lifestyle changes, you may be able to effectively lower estrogen levels and mitigate any estrogen-related side effects while continuing your finasteride treatment. However, it's crucial to work closely with a healthcare professional to ensure the safety and efficacy of your approach. With the right guidance and personalized care, you can find a balanced solution that allows you to continue your hair loss treatment while maintaining optimal hormonal health.

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.