Fellow

We provide the same quality results as an in-clinic test.

But wait… won’t my sperm die before it arrives at your lab?

Good question. Fellow’s patent-pending Stabilization Technology™ tackles this problem in two ways. First, we keep your sample in optimal condition so that fewer sperm die en route to our lab. The kit includes preservation solution that extends the life of your sample, a gel pack that keeps your sample at the right temperature, and a sensor that monitors the kit's temperature and humidity. The gel pack and temperature sensor are stored securely behind the sample container to ensure they operate as intended. Second, we developed an algorithm that accurately models the rate of sperm degradation over time, allowing us to calculate your sample’s metrics as if it was produced in a clinic. Other mail-in semen analyses simply report on the sperm’s quality at the time they receive it—typically 52 hours later—and these results aren’t representative of your actual fertility metrics.

Our test is recommended by doctors at top institutions.

We’re the only at-home test that owns and operates a CLIA-approved lab.

Unlike our competitors, Fellow is the only mail-in test that operates its own CLIA-certified lab (CLIA Number: 05D2081492). Why does this matter? CLIA (pronounced “KLEE-uh”) stands for Clinical Laboratory Improvement Amendments. Being CLIA-certified means that we are recognized by the federal government for meeting quality regulations for running tests that are used to help doctors and patients make health decisions. Operating our own lab allows us to ensure that every test is done to the highest quality standards ensuring you get the most accurate results possible. Read more about CLIA.

We strive to improve fertility outcomes through research.

Steps from UCSF, our secure biolab is equipped with cutting-edge technology built exclusively for sperm analysis. In partnership with the leading laboratory incubator MBC Biolabs, we’re able to combine the resources of a major lab with the expertise of a top research university.

We’re the only clinically valid semen analysis you can take from home.
Unlike competitors, we are the only mail-in semen analysis with our own CLIA-certified lab and patent-pending methodology to analyze your semen after 52 hours. This ensures your results are clinically valid.
Top doctors helped create our test, and trust us more than competitors.
Top fertility doctors at UCSF, Stanford, and USC helped validate our unique technology. We’re the only mail-in test they recommend to their patients.
All results are approved by a physician and your data is secure.
All results are approved by a doctor to ensure accuracy. After being analyzed, all samples are destroyed and the data is stored in our encrypted database.