Testosterone & Masculinizing Therapy

Masculinizing hormone therapy utilizes testosterone to develop male secondary sexual characteristics in transgender men.

Medically Verified
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Dr. Marina Sharoyko

Internal Medicine Physician | MNr. 80134

Reviewed on: Reviewed on:

Dr. Marina Sharoyko is a medical specialist in clinical pharmacology and internal medicine, with additional expertise in cardiology and physiology.

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Treatment Information

What Is Masculinizing Hormone Therapy?

Masculinizing hormone therapy is a medically supervised treatment that supports the development of physical characteristics that align more closely with a masculine gender expression. It is commonly used by transgender men and by some non-binary individuals who experience gender incongruence and wish to masculinise certain aspects of their body.

The therapy works by:

  • increasing testosterone levels to promote masculinising physical changes,
  • reducing the influence of estrogen-related effects,
  • and supporting psychological well-being by bringing the body more in line with gender identity.

Masculinizing hormone therapy leads to gradual changes over time. The speed and extent of these changes vary from person to person and depend on factors such as age, genetics, dosage, treatment duration and overall health. Not all effects are fully predictable, and some changes may be partially or fully irreversible.

At Transtoyou, masculinizing hormone therapy is always provided within a clear medical framework, with careful monitoring and shared decision-making between doctor and patient.

Who Is Masculinizing Hormone Therapy For?

Masculinizing hormone therapy may be appropriate for:

  • transgender men who were assigned female at birth and identify as male,
  • non-binary individuals who seek partial or full masculinisation,
  • adults experiencing gender dysphoria who wish to align their physical characteristics with their gender identity.

At Transtoyou, this treatment is available only for adults aged 18 and over and always requires a video consultation with a licensed doctor. During this consultation, medical suitability, expectations, risks and long-term considerations are discussed in detail.

Testosterone therapy can significantly reduce fertility and may suppress ovulation, but it should not be considered reliable contraception.

How masculinizing hormone therapy works

Masculinizing hormone therapy primarily consists of testosterone therapy. The exact treatment plan is always individual and tailored to your body, health and goals.

Testosterone therapy

Testosterone is used to support the development of masculinising characteristics such as voice deepening, increased muscle mass and facial hair growth. At Transtoyou, testosterone may be prescribed in different forms, including injections, transdermal gels or patches. The choice of formulation depends on medical factors, personal preference and how your body absorbs the hormone.

Estrogen suppression (indirect effect)

Testosterone therapy naturally suppresses estrogen production in most people. Additional medication to suppress estrogen is usually not required and is only considered in specific medical situations.

Expected effects and monitoring

Masculinizing hormone therapy can lead to physical changes such as voice deepening, increased muscle mass, body fat redistribution, facial and body hair growth and cessation of menstrual cycles. Some effects, such as voice deepening and facial hair growth, are usually permanent.

Hormone therapy can also affect libido, fertility and emotional experience. Because of this, regular medical monitoring is essential. Blood tests are used to ensure testosterone levels remain within safe ranges and to monitor overall health, including red blood cell levels, liver function, cholesterol and cardiovascular risk factors.Blood tests are typically performed every 3–6 months during the first year and annually thereafter, depending on individual medical factors.

Lifestyle and health considerations

Masculinizing hormone therapy is most effective and safest when combined with attention to overall health. This includes:
• regular follow-up appointments and blood testing,
• supporting bone health through nutrition, vitamin D and physical activity,
• maintaining cardiovascular health through a balanced lifestyle,
• and paying attention to mental well-being.

Psychological support is not mandatory but is often helpful. Gender-affirming care is not only about physical changes, but also about emotional well-being and long-term health.

At Transtoyou, masculinizing hormone therapy is never provided without proper medical guidance. Treatment always starts with a video consultation, informed consent and a personalised treatment plan. Prescriptions are issued for a limited period and require regular reassessment.

Additional treatment information

Masculinizing hormone therapy can lead to physical and psychological changes that help align the body with a masculine gender expression. These effects develop gradually and vary per person.

Common effects include:

  • Voice deepening, usually starting within 3–6 months and becoming permanent
  • Increased muscle mass and strength over time
  • Facial and body hair growth, with gradual thickening and darkening
  • Cessation or reduction of menstrual cycles
  • Emotional well-being, with many people reporting reduced gender dysphoria and improved confidence

Frequently Asked Questions

Get answers to common questions about Testosterone & Masculinizing Therapy

Most people notice changes within 3–6 months, but full effects can take 2–5 years. Voice deepening and hair growth develop gradually over time.
Yes, stopping hormone therapy will gradually reverse some changes. However, voice deepening and facial hair growth are usually permanent. Always consult a doctor before stopping treatment.
In most people, testosterone reduces or stops menstrual cycles within a few months. This is not guaranteed and varies between individuals.
Possible risks include increased red blood cell count, changes in cholesterol levels, changes in blood, acne, mood changes and cardiovascular effects. Regular health monitoring reduces risks.
Yes, testosterone therapy can reduce fertility and ovulation. Fertility preservation options should be discussed before starting treatment.
In most cases yes, masculinizing hormone therapy is a long-term and often lifelong treatment. Stopping testosterone may lead to partial reversal of some changes and health effects such as reduced bone density.
Yes, testosterone therapy can affect libido and sexual function. Many people experience an increase in sex drive, but responses vary and may change over time.
Yes. Blood tests are required before starting treatment and regularly during therapy to monitor testosterone levels, blood values and overall health.
Yes. Masculinizing hormone therapy at Transtoyou is only prescribed after a video consultation with a licensed doctor. Online questionnaires alone are not sufficient for this type of care.
The average cost of masculinizing hormone therapy at Transtoyou depends on the type of medication, dosage and individual treatment plan. As a general indication:
  • Medication: approximately €100–€180 per month
  • Video consultation: approximately €50, required once every three months
  • Blood tests: approximately €200 every three months when using home test kits. Private laboratories often charge more, but prices vary by location.
Prescriptions are issued for a maximum period of three months. For legal and regulatory reasons, medication is usually dispensed monthly, even though the prescription covers three months of treatment. Costs for consultations and blood tests are billed separately.

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