Testosterone (T+F), Estradiol and DHT Panel
This panel contains testosterone and its downstream metabolites: Estradiol and DHT. All three hormones are measured using Liquid Chromatography/Mass Spectrometry (LC/MS), the most accurate assay for hormones. No interactions with supplements like biotin are present.
This panel contains testosterone and its downstream metabolites: Estradiol and DHT. All three hormones are measured using Liquid Chromatography/Mass Spectrometry (LC/MS), the most accurate assay for hormones. No interactions with supplements like biotin are present.
Around 0.4% of testosterone aromatizes to estradiol in fat mass, testicles, and liver. Around 10% of testosterone converts to DHT via the alpha reductase enzyme. This enzyme is produced in many tissues in both males and females, in the reproductive tract, testes and ovaries, skin, seminal vesicles, prostate, epididymis and many organs, including the nervous system.
Testosterone, Total, LC/MS and Free (Equilibrium Ultrafiltration)
This panel includes total testosterone measured by the most accurate method (liquid chromatography/mass spectrometry LC/MS), free testosterone percent by equilibrium dialysis/ultrafiltration, and free testosterone calculated from percent free T. It is adequate for men who expect high T levels and women (LC/MS is accurate for high and low T levels also).
Total Testosterone:
– Liquid chromatography tandem mass spectrometry (LC/MS/MS)- No upper limit
– Analytical sensitivity: 1.0 ng/dL
– Analytical specificity: no cross-reactivity with other steroid compounds
– Analytical Measurement Range: 1.0 ng/dL to 2,000 ng/dL
Free and Total Testosterone:
– Percent free: equilibrium dialysis/ultrafiltration
– Free: calculated based on total and percent free testosterone
Ultrasensitive Estradiol Test
This test may take up to 7 business days to obtain results. Estradiol is produced by the body via the aromatization of testosterone in fat tissue, liver, and testicles. Estradiol is involved in bone health, cognitive function, sex drive, and body composition in both men and women. Depending on lifestyle factors, liver Issues, medications, body fat mass, and genetics, some people may have higher estradiol conversions from testosterone.
The commonly used estradiol test may overestimate estradiol. That test uses immunoassay technology that cannot differentiate C-Reactive Protein (involved in inflammation) from estradiol, so it reads the combination of the two as estradiol. This overestimation can lead to excessive use of anastrozole that can result in low estradiol which can cause several health issues. This ultrasensitive estradiol test is based on liquid chromatography/mass spectrometry (LC/MS), an assay technology that does not have that limitation.
DHT Test
Dihydrotestosterone (DHT) is synthesized from testosterone in the prostate gland, testes, hair follicles, and adrenal glands by 5-alpha reductase. Dihydrotestosterone exerts its action similar to testosterone, which binds to and activates androgen receptors. Dihydrotestosterone is responsible for the formation of male primary sex characteristics and most male secondary sex characteristics during puberty, such as muscular growth, facial and body hair growth, and deepening of the voice.
Excess DHT has been associated with hair loss, prostate volume increase, and acne in men with a genetic predisposition to those issues. Blocking or decreasing DHT to low levels may cause sexual dysfunction. More information on DHT in men.
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Go to the "Find a Location" page to find the closest lab location. No need to make an appointment since walk-ins are welcomed. Once you have identified your closest location, go to step 2.
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Go to "Choose a Test" and add your selection (s) in the shopping cart. If you prefer to save money on bundled tests, we have created "Lab Test Panels" that can help you decide what to order.
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If you have a discount coupon code, add it to your cart.
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A $8 lab processing fee will be added to your total.
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Pay using a credit card.
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You will receive an order confirmation and instructions email on how to download your lab request.
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Print lab request form that you downloaded.
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Take that form to the closest location. Get your blood drawn.
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You will receive an email when the results are ready for you to download.
Note: You cannot place an order under someone else's profile. The profile person's name will appear on the lab order form.If you have further questions, please email [email protected].