Half of fertility struggles involve the male side. Almost nobody checks.

Hormone testing, at-home sperm testing, and a licensed physician to review your results, all from home.

Start the Viro ProtocolCheck your sperm & hormones, improve both Share with someone you care about

Licensed physicians · Results in 3–5 days · Supplements cancel anytime

Three ways to start

The Viro Protocol checks your hormones and your sperm.

Best value

Viro Protocol

Hormone check + sperm tests + supplements + more

$159

then $49/mo, cancel anytime

  • Your hormone panel

    Testosterone, LH, FSH, estradiol and 8 more markers. Done at a lab near you, or with an at-home kit if there isn't one close. Results in about 3 to 5 days.

  • Physician video visit

    A licensed physician reviews your labs with you on video and decides if treatment makes sense.

  • Enclomiphene if the doc thinks you need it

    If your testosterone is low and your physician thinks you need it, you can get enclomiphene. It helps your body make more of its own testosterone. $149/mo, billed every 12 weeks by OpenLoop, with follow-up visits and labs included. Not everyone qualifies. Compounded, not FDA-approved.

    What is enclomiphene? →

  • 3 at-home sperm tests
  • 1st month of supplements*

$50 for labs + $109 for tests and supplements, charged separately. If your physician thinks you need it, enclomiphene is $149/mo, billed every 12 weeks.

Start: $159
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Sperm tests + supplements

No hormone check

$149

then $49/mo, cancel anytime

  • No hormone panel
  • No physician visit
  • No enclomiphene
  • 3 at-home sperm tests
  • 1st month of supplements*

Billed by Viro.

Get it: $149
Just the hormone panel: $50Panel + physician visit; enclomiphene if your physician thinks you need it. Billed by OpenLoop.
Start
No symptoms? Still get your hormones checked.A lab-only panel (testosterone, LH, FSH) is open to any man, no physician program required.→

"Start" takes you to a 5-minute quiz with our clinical partner. Right after, you'll be offered the sperm tests and supplements for $109. If you don't qualify, you don't pay.Your other options.

How the Viro Protocol works

  1. Answer a few questions and pay $50 for labs. About 5 minutes on your phone. Billed by OpenLoop Health, our clinical partner. Already have recent labs? You can upload them. The $50 still applies in case your physician needs new ones.
  2. Right after, add the sperm tests and supplements for $109. Billed by Viro. Supplements renew at $49/month; cancel anytime, with 30 days' notice if the product ever changes.
  3. Get your labs done. At a lab near you, or with an at-home kit if there isn't one close. Results in 3 to 5 days.
  4. A licensed physician reviews everything with you on video. If your testosterone is low and your physician thinks you need it, enclomiphene is $149/mo, billed every 12 weeks. You pay when you book the visit. If the physician says it's not right for you, the medication charge is refunded in 3 to 5 business days. Either way, you leave with real numbers and a plan. Not everyone qualifies. That's the point.
  5. Test, change something, test again. Sperm take about 74 days to make. Three tests let you see before and after.

About enclomiphene

What's the benefit of enclomiphene?

Mood and energy

For men with low testosterone, bringing it back into range may help with:

  • More energy and less fatigue
  • Better mood and motivation
  • A stronger sex drive
  • Strength, recovery and body composition
  • Focus and mental clarity

Hormones and fertility

  • Turns up LH and FSH, the signals that tell your body to make testosterone and sperm
  • Your body makes more of its own testosterone, instead of getting it from outside like TRT
  • Doesn't shut down sperm production the way traditional TRT can
  • Prescribed only if your physician thinks you need it

For men whose panel shows low testosterone, enclomiphene raises testosterone by increasing LH and FSH, the brain's own signals to the testes, instead of replacing testosterone from the outside. FSH is the signal for sperm production, so enclomiphene doesn't suppress it the way traditional testosterone therapy can. Physicians describe it as a fertility-preserving option for men with low testosterone. It is not a fertility treatment, and individual results vary.Read the studies.

Will I be dependent on it?

Enclomiphene boosts your own production instead of shutting it down, so it doesn't cause the dependence testosterone therapy can. If you stop, your levels usually drift back to where they started. Your physician decides how long to stay on it and rechecks your labs.

Are there side effects?

Side effects are uncommon, and your physician keeps an eye on things with regular labs.

In trials of about 1,400 people, the most common side effect was headache, in about 1 in 60. Hot flushes and nausea hit about 1 in 100. Your physician watches your estradiol. Rarely, drugs like this can cause blood clots or vision changes, so report any vision change right away. Compounded, not FDA-approved, and long-term data is limited. Some men don't qualify.

Availability varies by state; the intake confirms yours.

Why this exists

In May a lab report told me my sperm count was zero. I'd been on testosterone therapy and nobody had warned me what it does to the two hormones that make sperm. When I went looking for help, almost everything was written for her.

Modern problems need modern answers. Stress, processed food, night shifts, desk jobs and short sleep are most men's reality, and all of it pushes on the same hormonal system. We believe men do better with healthy testosterone, and that the first step is knowing your number, not guessing.

So we built the thing I wish had existed: a place where a man can get his side checked, understand the numbers, fix what's fixable, and raise his testosterone if it's low so he feels way better in the process, with his partner, not around her.

Emmett Stark, founder. Full disclosure: I own Viro Health Group. My story is my own and isn't a promise of anyone else's results.

Start the Viro ProtocolCheck your sperm & hormones, improve both