Unlock Extra
Income by
Donating Blood*
For Research Today!

Your Samples, Your Privacy.

Donor x is revolutionizing how you earn extra cash while contributing to important medical research. We make it easy for you to donate biospecimens like *blood, spit, urine, and even stool*—all while ensuring your privacy is protected. With flexible scheduling and a simple, hassle-free process, you can support the advancement of science on your own terms. Whether you’re looking to earn extra income or join a growing community of donors making a difference, Donor x has you covered.

Get Paid

Turn your time into money. Donate samples and refer friends. Get paid in as few as 48 hours. There's no need to drive a ride-share all day!

Privacy First, Always

Your privacy matters. Donor X keeps your identity safe and secure—it’s never shared or sold.

Your Time, Your Choice

Pick a time that fits your schedule. Donate whenever you’re ready, as often as you like. *Subject to screening and eligibility.

Make an Impact

You can earn cash while also making a difference. Your samples can help advance medical research and reward you for being an awesome human.

Your Donation Helps Advance Medical Research!

Join
Waitlist

Your questions, answered

  • Donor X is a secure online marketplace that matches research scientists with anonymous donors who meet the criteria for donating a sample to a research study.

  • Donors to get paid for donating samples like blood, urine, stool, and more.

  • Anyone over the age of 18 who meets the screening and eligibility criteria can donate.

  • Donors will be matched with research studies automatically through the Donor x platform.

  • A scientist is studying diabetes and would like urine from 2 adults aged 18-65 who do not have diabetes.

  • The scientist needs 2 samples on Monday, April 7, 2026.

  • One sample will be collected at 8am, and one sample will be collected at 8:05am.

  • If you're 18-65 years old and live within a set radius of the scientist, you'll receive an email or text message letting you know there is an open appointment.

  • You'll read the request, and if you meet the criteria and can make it to the pre-set appointment time, you'll accept the appointment time that works for you.

  • After visiting the national lab and donating your sample, you’ll be paid online or mailed a physical check (the choice is yours).

  • You can supplement your income. By donating samples to research with Donor x, you can get paid for each donation. For example, by donating 4x in a month, you can make $400*.
    *Note, some studies may have different payout amounts.

  • By becoming a donor, you are providing much-needed samples used to advance medical research.

  • When you register today, we’ll store your name, email, city and state.

  • We will use that information to let you know when Donor x launches in your city.

  • You are not required to join Donor x if you choose to get on the list today.

  • There is no obligation to participate.

  • You’ll be able to opt-out of receiving emails in the footer of every email you receive from us.

  • If you opt-in to a research study, you'll visit a national lab to make your donation.

Still have questions?
Contact Now

Make a difference and get paid.

Whether it's blood, saliva, or other samples, your contribution helps advance medical research.