What is HRT and how does it work?

Short Answer

HRT (Hormone Replacement Therapy) is a medical treatment that changes the hormone levels in your body to align with your gender identity. For trans women and transfeminine people, it typically involves estrogen and anti-androgens. For trans men and transmasculine people, it typically involves testosterone.

How HRT Works

For transfeminine people (estrogen-based HRT):

• Estrogen promotes feminine physical changes
• Anti-androgens or GnRH agonists reduce testosterone
• Changes include: breast development, softer skin, fat redistribution, reduced body hair, emotional changes
• Does not change: voice pitch, bone structure, facial hair (these require additional treatment)

For transmasculine people (testosterone-based HRT):

• Testosterone promotes masculine physical changes
• Changes include: voice deepening, increased body and facial hair, fat redistribution, muscle growth, cessation of menstruation
• Does not change: breast tissue (requires top surgery), bone structure

Timeline

HRT is a gradual process. Most changes begin within weeks to months and continue for years. The exact timeline varies by person, dosage, and genetics.

How to Access HRT

• Informed consent model: In many places, you can access HRT by visiting a healthcare provider, discussing the effects and risks, and giving informed consent — no therapy letter required.
• Traditional model: Some providers require a letter from a mental health professional before prescribing HRT.
• Planned Parenthood and LGBTQ+ clinics: Many offer HRT on an informed consent basis.
• Online providers: Services like Folx Health and Plume provide telehealth HRT access in the US.

HRT should be supervised by a medical professional. Self-medicating without monitoring carries health risks.

Is HRT Right for You?

Not every trans person wants or needs HRT. Some people transition socially without medical intervention. Others use HRT temporarily to achieve specific changes. There is no single "correct" transition path.