Low energy? Low drive? Low
sperm count? It could be
your testosterone.
Low energy? Low drive?
Low sperm count? It could
be your testosterone.
90-day money back guarantee
free shipping on subscriptions
Third-party tested
cGMP-certified
Clinically dosed
#1 doctor recommended
Third-party tested
cGMP-certified
Clinically dosed
#1 doctor recommended
Testosterone drives
sperm health, but
average levels have
fallen 25%.
To make a healthy baby,
you need optimal
testosterone, sperm
health and libido.
Why 90 days? Because
that's how long it takes to
build a sperm cell.
Sperm take approximately 72–90 days to develop. That's the spermatogenesis cycle — and it's why SwimClub is designed as a 90-day protocol, not a quick fix. Most men notice improvements in energy and drive within the first few weeks. Full optimization takes the full cycle.
Why 90 days? Because
that's how long it takes to
build a sperm cell.
Sperm take approximately 72–90 days to develop. That's the spermatogenesis cycle — and it's why SwimClub is designed as a 90-day protocol, not a quick fix. Most men notice improvements in energy and drive within the first few weeks. Full optimization takes the full cycle.
NAC and Zinc begin shielding testosterone-producing cells while new sperm start forming. You'll feel more sustained energy and improved sleep quality.
Testosterone support compounds. Sperm structure, motility, and membrane health improve. Sperm production begins responding to the formulation.
Full spermatogenesis cycle complete. All three pillars – testosterone, libido, and sperm health – are now fully supported. Your body is performing at its peak.
Not feeling it? Our 90-day money-back guarantee means you have nothing to lose and a full cycle to gain.
Fuel the cells that produce your testosterone.
N-Acetyl Cysteine (NAC)
600mgWhat it does: Reduces oxidative stress on the testes, raising the LH signal that triggers testosterone production.
Clinical Data: +23% free testosterone in 26 weeks at this exact dose. (Safarinejad, Journal of Urology)
Zinc
20 mgWhat it does: Required for testosterone biosynthesis and androgen receptor function — prevents free T from dropping under stress.
Clinical data: Clinically studied at 15–20 mg in men under physical stress. SwimClub uses a chelated form with superior bioavailability. (Neuro Endocrinology Letters)
Vitamin D3
50 mcg (2,000 IU)What it does: Acts as a steroid hormone precursor. Correcting D3 deficiency raises total, bioactive, and free testosterone across all three markers.
Clinical data: Supplementation in deficient men produced meaningful increases across all three testosterone markers. (European Journal of Endocrinology)
Selenium
200 mcgWhat it does: Supplies trace minerals Leydig cells need to manufacture testosterone, and protects reproductive tissue as a glutathione cofactor.
Clinical data: Confirmed role in Leydig cell hormone production and antioxidant defense. Dosed as Lalmin® Se2000 for superior bioavailability. (Journal of Andrology)
Vitamin E
205 mgWhat it does: Lipid-soluble antioxidant concentrated in reproductive tissue — shields Leydig cells from oxidative decline.
Clinical data: In vitro and human data confirm protective role in testosterone-producing cells at therapeutic doses.
Not all testosterone
supplements are the same.
Here's why it matters.
Not all testosterone supplements are the same.
Here's why it matters.
What to Look For
Clinical-dosages
Third-party testing
Testosterone-specific ingredients
Sperm health + libido support
90-day money back guarantee
Doctor-backed formulation
Others
600mg
23% increase
in free testosterone
20mg
Supports testosterone biosynthesis and protects free T-levels
50mcg
Raises total, free, and bioactive testosterone levels
Based on peer-reviewed clinical studies of individual ingredients at the precise dosages found in the SwimClub protocol. Results may vary.
90-Day Money Back Guarantee
600mg
23% increase
in free testosterone
20mg
Supports testosterone biosynthesis and protects free T-levels
50mcg
Raises total, free, and bioactive testosterone levels
Based on a clinical study of male participants over a 90-day period using the full daily protocol.
Our Fertility Experts
Dr. Michael Eisenberg
Director, Male Reproductive Health Stanford University
“I’ve spent my career studying male fertility and what I see today is alarming: sperm quality is declining at a rate we can’t ignore. That’s why I partnered with SwimClub to develop the first sperm performance supplement based on decades of research and clinical experience.
Most supplements are built on generic formulas. SwimClub is different. It’s formulated to target the root causes of suboptimal sperm health, using bioactives at clinical levels sourced from the best manufacturers in the world.”
Our Advisors
Dr. Roohi Jeelani, MD, FACOG
Double board-certified Reproductive Endocrinology and Infertility (REI) specialist. CEO, Founder of Onto Health
Larry I Lipshultz, M.D.
Pioneer in male reproductive medicine and Chief of Male Reproductive Medicine & Surgery at Baylor College of Medicine
Dr. Tyler McClintock
Staff Urologist, Cambridge Health Alliance
Dr. Stephanie Kuku
Chief Knowledge Officer and leads Scientific Affairs for Conceivable Life Sciences
Dr. Roohi Jeelani, MD, FACOG
Double board-certified Reproductive Endocrinology and Infertility (REI) specialist. CEO, Founder of Onto Health
Larry I Lipshultz, M.D.
Pioneer in male reproductive medicine and Chief of Male Reproductive Medicine & Surgery at Baylor College of Medicine
Dr. Martin Bastuba
Board Certified Urologist and Male Infertility Specialist
Frequently Asked Questions
SwimClub is designed for any man who wants to optimize his testosterone, libido, and overall reproductive health.
Whether you are looking to restore your energy and drive, or proactively planning for the future. Because it takes approximately 72 to 90 days for a full reproductive cycle, we recommend starting SwimClub for at least 3 months to see peak hormonal and cellular results.
However, because our formula begins protecting Leydig cells (which produce testosterone) from oxidative stress immediately, many men feel measurable improvements in energy and vitality in as little as 2 to 4 weeks.
No. Most testosterone boosters rely on aggressive marketing and under-dosed, unproven herbs. SwimClub is a clinically dosed, urologist-formulated reproductive health protocol. It doesn't just artificially spike hormones. It provides the exact clinical dosages your body needs to produce and sustain healthy testosterone levels, while also supporting sperm health and sexual performance.
Clinical data show that energy, drive, and hormonal support can begin to improve in as little as 2 to 4 weeks, but the protocol should be maintained for at least 90 days for full testosterone and reproductive optimization.
We stand behind our science. If you don’t see an improvement in your sperm health after 90 days of consistent use, we’ll refund your entire order.
1. A Baseline Test (Day 0): A semen analysis (clinic or at-home) taken within 30 days of starting SwimClub.
2. A Follow-up Test (Day 90): A semen analysis taken after completing your third month.
If the majority of your key metrics (count, motility, morphology, or DNA integrity) haven't improved, just email us at hello@swimclub.co. We believe in results, and if you don't get them, you shouldn't pay for them.
To deliver the full clinical dosage of all 11 ingredients, we couldn't fit everything into one pill. Each daily sachet contains 5 capsules and 2 softgels.
Yes. Many customers use SwimClub to optimize their sperm quality leading up to and during assisted reproductive treatments.
The 90-Day Starter Kit requires a 3-month minimum commitment to ensure you complete a full sperm production cycle. After your third month, you can pause, skip, or cancel your subscription at any time through your account portal.
Yes, we accept HSA and FSA dollars through Flex, so you can invest in your fertility with pre-tax health funds.
Use your HSA/FSA in 3 simple steps:
1) Add 90-day protocol to your cart. Note: You can only use HSA/FSA funds on a one-time purchase of SwimClub
2) Select Flex at checkout
3) You’ll be redirected to complete payment using your HSA/FSA funds
Male Fertility +
Testosterone Supplement
