Vitality RX

influence fertility

Evaluating male hormones provides critical insights into what may be causing poor sperm health and how to address it.


Average sperm counts worldwide have fallen by over 50% over the past five decades with no signs of leveling off.


3 in 4 men have symptomatic hormone dysfunction. Hypogonadism is under-diagnosed because symptoms are easily attributed to “normal aging,” leaving only 5% of low-T men receiving treatment.

Hormone testing can help guide your conception journey

Hormone testing is a simple way to check for possible causes of infertility. Overly high or low levels of male fertility hormones may negatively affect your fertility or indicate certain medical conditions that could impact your ability to conceive. As a result, undergoing testing for hormonal imbalances when trying for a pregnancy can help identify reasons you may be having trouble conceiving.

Vitality Rx can IMPROVE
your fertility

With the results from hormone testing, your doctor may be able to diagnose medical conditions and suggest treatment options to improve your fertility, like the VRx Reboot Program or personalized vitamin packs.

The hormones that drive male fertility

Four hormones are crucial for healthy sperm and optimal male fertility: follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone, and estrogen. Testing for hormonal imbalances is essential when addressing male fertility.

Particle of Estradiol

Follicle-stimulating hormone (FSH)

FHS is a hormone that is key to spermatogenesis. It works closely with LH to produce sperm in the testes. Low FSH can have serious consequences for sperm count and quality.

Hormone Testosterone Illustration

Luteinizing hormone (LH)

LH is a hormone that controls the production of testosterone supporting sperm production. Low LH can create a testosterone deficiency, impacting sex drive and fertility. Abnormally high levels of LH or FSH could indicate testicular failure or damage.

Luteinizing Hormone Illustration


Testosterone is essential for spermatogenesis; specifically, it drives the division and differentiation of sperm cells. Testosterone is not the hormone that stimulates sperm production, and many people with low testosterone can still produce healthy sperm. Low testosterone can negatively affect fertility and cause erectile dysfunction and low sex drive.

Sex Hormone Binding Globulin Illustration


Estradiol, the predominant form of estrogen, also plays a critical role in male sexual function. Estradiol in men is essential for modulating libido, erectile function, and spermatogenesis. Too high or low estradiol levels may lead to a reduced sex drive and fertility issues.

LEGACY and Vitality Rx have teamed up to offer an all-in-one solution to track your fertility and hormone biomarkers from home.


  • No waiting for an appointment.
  • No socially awkward moments.
  • Clinical-grade results in days instead of weeks.


Legacy is a proud partner of Department of Veteran Affairs, Green Beret Foundation and Naval Special Warfare.

Why Vitality Rx patients choose LEGACY vs. traditional clinics:

Leader in at-home fertility testing and preservation for men

25,000+ analyses performed • 70,000+ vials frozen

No appointment scheduling

Discrete sample collection at home.

No MD order necessary

Clinic-grade analysis within 48 hours

Military-grade data encryption & security

Multi-geography storage of samples for added security

Create a legacy of Vitality

Personalized daily supplement packs, proprietary prescription capsules and access to our app to track your progress.

VitalityRX Test Kit Products