Testosterone Test Plus

About this test

Key Benefits

• Measures three essential hormones: testosterone, LH, and SHBG

• Provides insight into both total and free (active) testosterone

• Helps identify whether imbalances originate from the gonads (testes/ovaries) or pituitary gland

• Supports evaluation of symptoms such as fatigue, low libido, and fertility issues

• Useful for monitoring hormone therapy and overall hormonal health

What This Test Measures

This test analyzes:

• Testosterone (Total)
  The primary androgen hormone, important for muscle mass, bone health, energy, libido, and mood in both men and women.

• Luteinizing Hormone (LH)
  A hormone produced by the pituitary gland that regulates testosterone production in men and ovulation in women.

• Sex Hormone-Binding Globulin (SHBG)
  A protein that binds testosterone in the blood and determines how much is biologically active (free testosterone).

Why Measure These Hormones Together?

Measuring these markers together provides deeper insight into:

• Fatigue, low libido, and mood changes

• Fertility issues or irregular menstrual cycles

• The underlying cause of hormonal imbalance (gonadal vs pituitary origin)

• The balance between bound and free testosterone

• Monitoring of hormone therapy or treatment effects

Understanding the Markers

What is Testosterone?
A key hormone involved in physical performance, energy, sexual function, and reproductive health.

What is LH?
LH helps regulate hormone production and can indicate whether an imbalance originates from the pituitary gland or the gonads.

What is SHBG?
SHBG controls how much testosterone is available in its active form, making it crucial for interpreting symptoms even when total levels appear normal.

When Is This Test Relevant?

This test may be useful if you experience:

• Unexplained fatigue

• Low or high libido

• Fertility concerns

• Hormonal imbalances

• Menstrual irregularities

• Changes in mood, energy, or sexual health

It is also relevant for individuals undergoing hormone therapy or monitoring hormonal health.

How It Works

1. Order Your Kit: Purchase your test online

2. Collect Your Sample: Perform a simple finger-prick blood test (DBS) at home

3. Send It Back: Mail your sample to the lab

4. Receive Results: Access your digital results once analysis is complete

Sample Collection

The sample is collected using a dry blood spot (DBS) method. You take a small blood sample via a finger prick at home and send it to the lab for analysis. This method is simple, safe, and minimally invasive.

For best accuracy, the test should be taken in the morning between 07:00 and 10:00, when hormone levels are typically highest.

Total vs Free Testosterone

Total testosterone reflects all testosterone in the blood, including both bound and unbound forms.
SHBG binds a large portion of testosterone, making it inactive. By measuring SHBG, the test helps estimate how much testosterone is free and biologically active.

ISO-Certified Lab and Analysis

Your sample is analyzed in an ISO-certified laboratory using Electro Chemiluminescence (ECLIA), a highly sensitive and reliable method for hormone analysis, ensuring accurate and dependable results.

Biomarkers included

• Sex Hormone-Binding Globulin (SHBG): Sex Hormone-Binding Globulin (SHBG) is a protein produced by the liver that binds to sex hormones, primarily testosterone and estrogen, in the bloodstream. By binding these hormones, SHBG regulates their bioavailability, meaning only the 'free' or unbound hormones can interact with target cells and exert their biological effects. Therefore, SHBG levels are crucial for understanding the true hormon
• Testosterone: Testosterone is the primary male sex hormone, although it is also produced in smaller amounts in women. It plays a crucial role in male reproductive development, muscle mass, bone density, and sex drive. In women, testosterone contributes to libido, muscle mass, and bone health. Imbalances can lead to various issues, including decreased libido, erectile dysfunction (in men), fatigue, loss of muscl
• Luteinising Hormone: Luteinising Hormone (LH) is a gonadotropin produced by the pituitary gland that plays a critical role in regulating the reproductive system. In women, a surge in LH triggers ovulation and the development of the corpus luteum, while in men, it stimulates the Leydig cells in the testes to produce testosterone.

How to prepare

24 hours before: Avoid alcohol, caffeine, intense exercise, and smoking. You take the test on an empty stomach in the morning. Collect sample in the morning (7-10 AM).

Frequently asked questions

How does it work? / When do I get my results?

1. Order and receive your kit. 2. Perform the test. 3. Send a sample at the beginning of the week (to avoid delays). 4. Results digitally in 10–15 business days.

When is the best time to take the Testosterone Test Plus?

It is highly recommended to collect your sample in the morning, ideally before 10:00 AM. Testosterone levels are at their peak early in the day and naturally decline as the day progresses, so morning collection ensures the most accurate and comparable results.

Why is it important to measure SHBG along with Testosterone?

SHBG is a protein that binds to testosterone, making it inactive. By measuring SHBG, we can determine your "free" or bioavailable testosterone. This is important because you may have normal total testosterone levels but high SHBG, which prevents your body from using the hormone effectively.

How does Luteinizing Hormone (LH) affect my results?

LH is produced by the pituitary gland and tells your body to produce testosterone. Measuring LH helps determine if a hormonal imbalance is caused by an issue with testosterone production itself or a signal failure from the brain (pituitary gland).

Customer reviews

4.8/5 (5)

• 5/5 — Great kit for a quick health check.
• 4/5 — Took a bit longer than I expected to get my report back, but the data was very thorough. Good to see the SHBG levels too.
• 5/5 — Fast shipping and the instructions were very easy to follow.
• 5/5 — Perfect way to check my levels without needing a doctor's appointment.
• 5/5 — Extremely simple process and the results gave me the clarity I've been looking for.