Starting HRT or TRT is a decision that should always be made with a qualified provider, based on both your symptoms and confirmed lab results. This page covers who's typically a good candidate, an important distinction between FDA-approved and compounded hormone products, ongoing monitoring requirements, and answers to the questions patients ask most often.

Who's a Candidate for HRT?

HRT is generally considered for women who:

  • Are experiencing disruptive menopausal symptoms, such as hot flashes, night sweats, vaginal dryness, or sleep disruption
  • Are within roughly 10 years of menopause onset or under age 60, where current evidence suggests a more favorable risk profile
  • Do not have a personal history of breast cancer, active blood clots, or other specific contraindications their provider screens for

Who's a Candidate for TRT?

TRT is generally considered for men who:

  • Have symptoms consistent with low testosterone — reduced libido, fatigue, erectile difficulty, loss of muscle mass, or mood changes
  • Have unequivocally low testosterone confirmed on at least two separate morning fasting blood tests, not a single reading
  • Do not have prostate or breast cancer, a PSA level above their provider's threshold without further evaluation, untreated severe sleep apnea, uncontrolled heart failure, or a recent heart attack or stroke
  • Are not actively trying to conceive in the near term, since TRT can suppress natural sperm production

FDA-Approved vs. Compounded "Bioidentical" Hormones

"Bioidentical" simply means a hormone has the same chemical structure as the hormone your body naturally produces. Importantly, many FDA-approved hormone products are themselves bioidentical — estradiol and micronized progesterone, for example, are bioidentical hormones that are also FDA-approved, meaning they've gone through clinical testing and are manufactured under consistent quality and dosing standards.

Compounded "bioidentical" hormone therapy (cBHT) refers to custom-mixed hormone preparations made by compounding pharmacies. These are not reviewed or approved by the FDA, which means there's no independent verification of dosing accuracy or purity batch to batch. The American College of Obstetricians and Gynecologists (ACOG) and the Endocrine Society have both stated clearly that evidence does not support claims that compounded bioidentical hormones are safer or more effective than FDA-approved options.

The Key Takeaway on "Bioidentical" Marketing

"Bioidentical" describes a hormone's chemical structure, not its regulatory status or safety. The distinction that actually matters is whether a specific product is FDA-approved (tested, consistent dosing, regulated manufacturing) or compounded (not FDA-reviewed, variable dosing and purity). If you're considering a compounded hormone product, ask your provider directly why a compounded version is being recommended over an FDA-approved alternative.

Ongoing Monitoring

Whichever therapy you start, expect your provider to monitor your progress and safety over time:

  • For HRT: periodic symptom review, blood pressure checks, and breast and pelvic health screening per standard guidelines for your age.
  • For TRT: testosterone levels (to confirm you're in a healthy range), complete blood count (to monitor for excess red blood cell production), PSA levels, and periodic symptom review.

Frequently Asked Questions

What's the actual difference between HRT and TRT?

HRT generally refers to estrogen (with or without progesterone) replacement in women, most often related to menopause. TRT refers to testosterone replacement in men with clinically confirmed low testosterone. They target different hormones, different patient populations, and are diagnosed using different criteria.

Does HRT prevent heart disease and cancer?

Not as a general rule. Current evidence points to a "timing hypothesis": HRT started within about 10 years of menopause may have a more favorable cardiovascular profile for many healthy women, while starting later may carry different risk considerations. A 2024 meta-analysis of over 44,000 women found HRT did not significantly reduce overall cardiovascular events or mortality, and was associated with increased stroke and blood clot risk. This is an active area of ongoing research, not a settled blanket benefit.

What testosterone level qualifies someone for TRT?

There's no single universal number — medical societies use thresholds ranging from about 264 to 350 ng/dL for total testosterone. What all major guidelines agree on: diagnosis requires both consistent, repeated low levels on morning fasting labs and disruptive symptoms. A single low reading without symptoms, or symptoms without confirmed low levels, isn't generally sufficient for diagnosis.

Is bioidentical hormone therapy safer than synthetic hormone therapy?

Not necessarily, and the framing itself can be misleading. Many FDA-approved hormone products are bioidentical. The safety-relevant distinction is whether a product is FDA-approved (consistent, tested dosing) or compounded (not FDA-reviewed). Major medical organizations recommend FDA-approved options be used over compounded versions whenever one exists.

Can women take testosterone?

In specific, individualized cases — most often for low sexual desire after menopause — testosterone is sometimes used off-label in women. However, there is currently no FDA-approved testosterone product for women in the United States, and ACOG specifically recommends against pellet delivery for this use due to limited safety data.

How long does it take to feel the effects?

Timelines vary by symptom and individual. Some HRT patients notice improvement in hot flashes within a few weeks, while bone density benefits take much longer. TRT patients often notice mood and energy changes within weeks, while muscle mass and body composition changes typically take several months of consistent treatment.

Medical Disclaimer

This content is provided for general educational purposes only and does not constitute medical advice, a treatment recommendation, or an endorsement of any specific hormone product or protocol. Hormone therapy should only be started and managed under the guidance of a qualified healthcare provider.