To donate plasma, you need three things at minimum: a valid government-issued photo ID, proof of your Social Security number, and proof of your current address. Beyond the paperwork, you also need to meet basic health requirements, including being at least 18 years old and weighing at least 110 pounds. Here’s everything to know before your first visit.
Documents to Bring
Every plasma center will ask for the same three forms of documentation when you check in:
- Government-issued photo ID: A driver’s license, state ID, passport, or military ID.
- Proof of Social Security number: Your Social Security card, a W-2 form, or a recent paystub. The name on this document must match your ID exactly.
- Proof of current address: A driver’s license with your current address works, or you can bring a utility bill, bank statement, or lease agreement.
If your name doesn’t match across all documents, or if your ID is expired, you’ll be turned away. Double-check everything before you leave the house.
Age, Weight, and Basic Health Requirements
You must be at least 18 years old and weigh at least 110 pounds. There is no upper age limit at most centers, though some set their own cap. Beyond those basics, you need to be in generally good health on the day you donate, meaning no active infections, fevers, or open wounds near the needle site.
The Screening You’ll Go Through
Before every donation, staff will check your vital signs and run a quick finger-stick blood test. You’ll need to fall within these ranges to be cleared:
- Temperature: Below 99.5°F
- Blood pressure: Systolic between 90 and 180, diastolic between 50 and 100
- Pulse: Between 50 and 100 beats per minute
- Iron levels: Your hematocrit (the percentage of red blood cells in your blood) must be above 38%
- Protein levels: Total protein in your blood must be above a minimum threshold, checked at each visit
If any reading falls outside those ranges, you’ll be deferred for the day but can usually come back once the issue resolves. Low iron is one of the most common reasons people get turned away, especially with frequent donations.
Medications That Can Disqualify You
Most everyday medications, like those for allergies, mild pain, or birth control, won’t prevent you from donating. But several categories will trigger a temporary or permanent deferral.
Blood thinners and anti-clotting medications require a waiting period of 2 to 7 days after your last dose, depending on the specific drug. The acne medication isotretinoin (commonly known by the brand name Accutane) requires a one-month wait. Medications for hair loss or enlarged prostate that contain finasteride or dutasteride carry deferral periods ranging from one to six months.
Oral HIV prevention medications like PrEP require a 3-month deferral from your last dose. Injectable forms of HIV prevention carry a 2-year wait. Anyone currently taking medication to treat HIV is permanently deferred. Certain drugs used for psoriasis, rheumatoid arthritis, and multiple sclerosis also carry deferral periods of one to three years. If you’re enrolled in a clinical trial or taking any experimental medication, you’ll need to wait 12 months after your last dose.
The center will walk through your full medication list during your first visit. If you’re unsure whether something you take will be a problem, call ahead.
How to Prepare the Day Before
Hydration is the single biggest factor in how smoothly your donation goes. Aim for 8 to 10 glasses of water or other non-alcoholic fluids the day before your appointment, and drink at least three full glasses (about 750 mL) in the three hours leading up to your visit. Well-hydrated donors have plumper veins, faster draw times, and fewer side effects.
Eat a solid meal before you go, focusing on protein-rich foods and complex carbohydrates. Avoid greasy or high-fat meals, which can make your plasma cloudy and potentially unusable. Skip alcohol for 24 hours before donating.
What Happens During Your First Visit
Plan for your first appointment to take significantly longer than future visits. You’ll fill out a detailed health questionnaire, go through a brief physical exam, have your vitals checked, and complete the screening blood work before the actual donation begins. Many first-time donors report the full process taking two to three hours.
The donation itself involves having blood drawn from one arm, run through a machine that separates out the plasma, and then returned to your body with saline. This cycle repeats several times over roughly 45 minutes to an hour. Return visits skip most of the intake paperwork and typically move faster.
What You Get Paid
Most commercial plasma centers pay between $30 and $70 per donation, though some are paying $100 or more as of mid-2025. Payment is typically loaded onto a prepaid debit card after each visit.
New donors almost always earn more. First-month bonuses at major chains can be substantial: CSL Plasma advertises up to $700 in your first month, and BioLife offers up to $750 at select locations for new donors. After the introductory period, compensation drops to the standard per-visit rate, but referral bonuses, loyalty programs, and raffles can push monthly totals higher. Frequent donors who give twice a week (the maximum allowed) can earn $400 or more per month, with some high-volume donors reaching $1,000.
Aftercare and Recovery
Keep the bandage on your arm for two to three hours. Avoid heavy lifting, intense exercise, and working at heights for the rest of the day. Drink at least four extra 8-ounce glasses of fluid and avoid alcohol for 24 hours after donating.
If the needle site starts bleeding after you leave, press down firmly and raise your arm above your head for 5 to 10 minutes. Some bruising, swelling, or discoloration around the site is normal and may spread slightly up or down your arm over the next day or two.
Lightheadedness and nausea are the most common side effects. If you feel dizzy at any point, sit or lie down immediately and don’t try to push through it. Avoid any activity where fainting could lead to injury for 24 hours after donating. If you notice tingling or numbness in your fingers, increasing redness or swelling at the needle site, or symptoms that worsen instead of improve, seek medical attention.