Sperm Health. Sorted.

Get tested from £99

For the guy who

is curious

Is your sperm okay?

Your health, your habits, the future you’re building, becoming a dad. Sperm health belongs in that picture.

Don't guess. Test.

Sperm counts are down more than 50% since the 1970s. Jack shows you where you stand today, what matters, and what you can do next.

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Low motility Low count Low concentration
High motility High count High concentration

A modern way to check in on your swimmers

Delivered like any other parcel

Discreetly packaged to your door. Nothing gives away what's inside.

Done from the comfort of home

You decide when to use your collection kit. No appointments needed.

See full instructions →

Know exactly where you stand with lab results back from Oxford in as little as 48 hours

Get tested

Know what matters

Sperm quality isn’t just about reproduction. It’s also one of the clearest biomarkers of overall health and can change.

Five key sperm markers. Lab tested.
Count, concentration, motility, volume, morphology - benchmarked against the average man and combined into an overall Sperm Health Status.

Beyond the numbers. Diet, sleep, stress and the rest. 50 lifestyle questions personalised and mapped to sperm health.

Ask Jack anything.
However deep you want to go on your results. Unlimited questions, answered by an AI built with Oxford scientists.

Ask Jack

From the men who already know

If you're thinking about having kids one day, at a minimum get tested. This is an ideal choice for that first step."
James K.
"As an ex-professional athlete, I wondered what impact years of elite training would be. Jack’s test was SUPER helpful at putting my results in context"
Josh Bugajski, ex-Team GB Olympic rower
Sperm Test
...my partner got this for me. The kit just made sense. Postboxed it back and got my results a day later."
Tom S.
Sperm Test
Quick, convenient and easy to use. Thanks team Jack!"
Verified customer
"The Ask Jack AI chat was a total revelation. I asked it all my (embarrassing!) questions and I really understand my sperm health now. Empowering."
Alex P.
Sperm Test
Black box with a white funnel and small containers on a light surface, with a clock in the background.

The Jack Sperm Test

Drop it in any Royal Mail postbox. Count, concentration, motility, volume, and morphology - everything that matters. Results in your private dashboard within hours of arrival at our Oxford lab.

Get the kit
Add to basket

Have questions? Get answers

No. Most of our customers aren't. Sperm health is a window into your overall health: it's affected by stress, lifestyle, diet, sleep, and underlying conditions that are worth knowing about regardless of your plans. Whether you're curious, proactive, or just haven't thought about it before, this test is for you.

FAQs