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Blood testing.

The WeightGain blood testing box
4,500+ certified lab locations

Get launch news for blood testing and TRT.

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Email only. Joining doesn’t buy, book or prescribe anything.

TRT.

Testosterone replacement therapy, for confirmed low testosterone after a clinician’s evaluation.

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Coming soon. Email updates only.

What a panel can measure.

The markers a hormone blood test commonly includes, in plain English. Which tests WeightGain offers will be announced before launch.

Total testosterone

All the testosterone in your blood: the part carried by proteins and the small part that circulates free. Levels run highest in the morning, which is why tests are usually drawn early.

  • The clock changes the answer

    In men aged 30 to 40, total testosterone measured at 4pm runs 20 to 25 percent lower than the same man at 8am. In that study, 17 men with an afternoon reading below 300 ng/dL were normal at all three of their morning draws.

    20 to 25% Source: Brambilla et al., 2009

  • Same blood. Different answers.

    One man's blood sample was sent to 1,133 labs using 14 different test methods. The answers came back anywhere from 45 to 365 ng/dL. The highest was eight times the lowest.

    45 to 365 Source: Endocrine Society, 2018

  • A single draw is not an answer

    Roughly 30 percent of men whose first testosterone lands in the hypogonadal range come back normal on a second morning measurement. This is why the guideline asks for two separate fasting morning draws before anything else.

    1 in 3 Source: Endocrine Society, 2018

For education only. Published findings about measurement; they can’t tell you anything about your own levels. Sources are cited for reference; WeightGain is not affiliated with or endorsed by them.

What you’ll hear about.

  • Test options

    Which tests will be offered, and what each option includes. Details will be announced before launch.

    Not yet announced
  • Collection details

    How and where samples will be collected, with any preparation steps explained before you book.

    Not yet announced
  • Availability & pricing

    Where the service will be available and what it will cost. There is nothing to buy or book today.

    Not yet announced

Blood testing through our lab partner’s network of more than 4,500 certified locations across the US.

Illustration. Lit points mark major cities, not exact lab sites.Drag to turn the map.

What’s true today.

  • Nothing on this site is for sale today.
  • Testing is not available yet.
  • No launch day is set yet.
  • The waitlist makes no eligibility, diagnosis, treatment, prescribing, or medication access decisions.
  • A clinical team is assembling. Names will be published when confirmed. No clinician is listed before then.

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About these updates

Launch emails only. Care and products are not available yet.

  • The waitlist makes no eligibility, diagnosis, treatment, prescribing, or medication access decisions.
  • Clinical questions, eligibility, and care decisions happen later with a licensed provider, outside this form and only where legally available.
  • Email updates are open internationally. Planned care and products are US only, subject to state and individual eligibility.

Updates only. Do not submit symptoms, diagnoses, lab values, medication history, payment details, or medical documents.

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