Frequently Asked Questions

When you come to one of our two donations centers in Alameda, California or Quincy, Massachusetts, you can expect your donation to be collected by a certified medical team of experienced doctors, nurses and phlebotomists. The best way to reach us is via our contact us form. Please keep in mind our donations are by appointment only and are generally scheduled Monday through Thursday 7:15 am – 12:00 pm. We are excited to welcome you to our program!


What does LeukoLab do?

We are here to bridge the gap between researchers who are looking for cures and donors who are looking to help. Our program invites healthy individuals to participate in research studies in which you may donate a variety of blood and cell types. These cells and blood go to medical and scientific researchers all over the world who are developing medical breakthroughs. We are different from a blood bank that collects blood to transfuse into patients.

Participation in our program is completely voluntary and our donors are compensated for their participation in a research study.

I filled out the online screening form, why was I not accepted?

There are a variety of reasons a prospective donor could be disqualified, including medical history, current medications, or other suitability considerations. Our online form is designed to ensure both the safety of donors and a high-quality product that meets researchers’ needs. For this reason, our requirements are very specific. Often times, a disqualification could be a combination of many factors and not any one specific reason.

Why haven’t I heard of a place that does what LeukoLab does?

You’re not alone! Donating blood for research has been around for a long time and after 13 years in operation, we have perfected the experience of donating for research. At LeukoLab, we put our donors first. Your consent is required every time you donate with LeukoLab, and we’re here to make sure that the donation process is clear and that you always feel comfortable.

What does it mean to be part of a research study?

As a donor with LeukoLab, you are a study participant. This means your participation is voluntary and you can discontinue your participation at any time. The LeukoLab clinical staff may also determine that your participation is no longer suitable for any or all of the studies.

How and when will I be compensated?

All compensation is made in the form of Visa debit cards. All compensation cards will be provided to you at our front desk immediately after your collections.

With our cards, you can take cash out from the ATM, move money straight into your bank account, or use it like a regular debit for online or in-person purchases (some fees may apply for bank withdrawals or money transfers).

To transfer the balance of your payment card to your bank, go to, view the “Card Action” options, and hit “Transfer to Bank” to transfer funds right into your bank account. Please allow 2-3 days for processing time and a $1.50 fee (or as listed) will apply.

How much will I be compensated?

You will be compensated based on the donation types you qualify for. At your on-site screening appointment, our clinical staff will conduct an assessment to determine which donation types you qualify for. Not everyone qualifies for all donation types. Compensation rates vary and are based on the time and effort of each donation type:

  • Whole Blood $60 – $320 (1 hr donation)
  • Bone Marrow $250 – $700 (60 min donation)
  • White Blood Cell $275 or $450 (2-5 hr donation)
  • Mobilized White Blood Cell $600 – $1,650 (time commitment varies)

I cannot donate with other blood banks. Can I donate at LeukoLab?

You might be able to donate with LeukoLab even if you cannot donate with a regular blood bank. Because our research donations are not used for transfusions, we do not have the same requirements as blood banks. We encourage you to fill out our online screening form to find out.

Will I be disqualified for smoking, tattoos, piercings, travel, etc.?

No, you will not be disqualified. These are all acceptable for most of our research grade collections.

How do I sign up to become a donor?

Becoming a donor with us is easy! It takes just 5 steps:

  1. Complete the online screening form.
  2. Get screened on-site.
  3. Donate!
  4. Receive your compensation.
  5. Donate again!

To get the best overview, watch our donor video.

Why do I need to complete the online screening form? Can I just walk-in?

Walk-in appointments are not available at this time. The online screening form is designed to save you time and effort by letting you know right away whether or not you qualify to donate. The form is simple and requests your contact and medical information, and takes just 5-10 minutes. Please be assured that all of your private information is kept confidential and will not be used or shared outside of LeukoLab.

What can I expect for my on-site screening?

We ask our donors to arrive 15 minutes early to complete some paperwork. Next, we measure your weight, height, and vital signs and take a small sample of blood to conduct a blood panel. We will review the different donation options and discuss the donations for which you qualify. Please note, you may be informed that you do not qualify for any collection types. While this does not happen often, it can! Not qualifying just means you do not fit the requirements for our studies, but does not necessarily mean you are unhealthy. Pro tip: A great way to increase your chances of qualifying is to stay hydrated!

Your first screening will take about an hour. Subsequent re-screenings take about 45 minutes. A re-screening is required every 3 months to verify your eligibility in the program. Don’t worry, you’ll automatically receive a reminder email from us when it’s time for you to re-screen!

Will I be notified if I have a positive blood test?

LeukoLab does run standard viral tests but we, LeukoLab, should not be used as a testing facility. If we draw your blood for viral tests you will receive a call from our medical staff if there is a test result that requires further medical attention.

How do I make an appointment for a donation?

Appointment availability is dependent on donation requests we receive from researchers. At the end of your on-site screening, we will review your profile and match you with any available donation requests. Your first donation appointment may be available within 1-2 weeks of your on-site screening. Researcher requests come in daily, so we will continue to reach out to you as requests match your profile.

If you are looking to donate again or have not heard from us in awhile, please fill out our “I want to donate again” form.

Does donating bone marrow hurt?

The procedure for donating bone marrow has developed a great deal in the past few years. This minimally invasive procedure will have some discomfort, however, donors are able to drive themselves home after their donation. Many of our donors return to donate bone marrow again!

Can I drive myself home after a donation?

Yes, you will be able to drive yourself home after all of our collection types.

How many donations can I provide in one visit?

Generally, only one donation can be provided per visit. There may be instances where we may request a whole blood donation in addition to other scheduled donations on the same day.

How often can I donate?

The frequency in which you can donate varies by donation option. Each donation option has a deferral period that is enforced for the donor’s safety. A deferral period is the length of time a donor is required to wait before their next donation.

For Whole Blood, there is an 8-week (56 days) deferral period after 520mL is reached. There is no deferral period between donations until the donor reaches 520mL.

For Bone Marrow, there is a 6-week (42 days) deferral period after a 50mL collection, and a 12-week (84 days) deferral period after a 100mL collection.

For White Blood Cells, there is a 1-month (30 days) deferral period after a half pak collection, and a 2-month (60 days) deferral period after a full pak collection.

For Mobilized White Blood Cells, there is a 6-month (182 days) deferral period between collections.

I did not meet the requirements of the online questionnaire. Can I take it again?

No, please do not repeat the questionnaire. Once completed your submission cannot be retaken. If you feel you made an error or need to reach out to us, fill out this form for us to follow up with you.