Testosterone & Libido

$127.95

Results: 1 to 5 days

Collection: blood draw

Biomarkers: 5

Male libido, energy, and performance depend on a complex hormonal balance.

The Testosterone & Libido BioMap provides a complete view of testosterone function, androgen metabolism, and estrogen balance.

BioMap included tests are listed below.

    • Reference range (males): 12–65 ng/dL

    • Optimal range (males): 30–50

    • DHT is a byproduct of testosterone.

    • High levels of DHT are linked to male pattern baldness (androgenetic alopecia), the most common form of hair loss in men.

    • You want enough DHT to support muscle mass, cognition, and mood, but not so much that you excessively stimulate prostate/baldness pathways.

    • Reference range (males): <39 pg/mL

    • Optimal range (males): 20–30

    • Estrogen is a collective term for a group of hormones–estradiol, estrone and estriol.

    • Estradiol is the most potent form of estrogen.

    • In men, estradiol helps control erectile function, libido, and sperm production.

    • As men age, they often make less testosterone, and so they produce less estradiol as well.

    • Changes often attributed to testosterone deficiency might be partly or entirely due to the accompanying decline in estradiol.

    • Reference range (males): 250–1100 ng/dL

    • Optimal range (males): 600–900

    • Total testosterone is the sum of all testosterone in the bloodstream, including free and bioavailable.

    • It is an androgen hormone that signal the body to have “male” characteristics.

    • In men, testosterone also promotes secondary sexual characteristics such as facial and chest hair, bone health, upper body muscle mass and strength, and regulates body fat distribution.

    • Low levels of testosterone are associated with aging and medical conditions including diabetes, high blood pressure, and obesity.

    • Reference range (males): 35.0–155.0 pg/mL

    • Optimal range (males): 100–200

    • Free testosterone is biologically active.

    • It’s the form of testosterone that can actually bind to receptors and drive libido, muscle growth, and mood.

    • Some men have normal total testosterone but low free testosterone, often due to high levels of SHBG (sex hormone-binding globulin).

    • Free testosterone is the single most important marker for male hormonal function and libido.

    • Reference range (males): 10–50 nmol/L

    • Optimal range (males): 20–40

    • SHBG is a protein made by your liver.

    • It transports and controls the number of hormones available for your body to use, including testosterone and estradiol.

    • High SHBG = less free testosterone, meaning even normal total testosterone may not be enough.

    • Low SHBG can indicate insulin resistance or metabolic dysfunction.