How much blood can be drawn for prp?

I have a lot of white stretch marks that are quite distressing for someone my age. If I were to treat almost my entire torso, front and back, how much prp can actually be utilized? How much blood is normally drawn to use for stretch marks?

Doctor Answers 2

PRP and microneedling RF - INFINI

To answer you question - I agree with Dr Weiner, my concentration is between 5-6 times the normal platelet concentration. The amount of blood needed will be dependent on the surface area one is treating. Given the large surface area, I do recommend a test patch first to see how you respond. It only makes sense to see how good you respond to this procedure in a small area, rather than treating a large area.  Old stretch marks are harder to treat- my preferred option for old, white, silvery- papery stretch marks is a combination of CO2 fractional laser, or with INFINI RF and PRP. I also use Fraxel ReStore 1550, and also lasers in the 1540 wavelength. Of all the methods I find microneedling with RF energy and PRP the best, as it has the lowest rate of skin colour changes, and the fastest healing time. Results wise, it outperforms CO2 laser! The truth is that stretch mark treatments are HIGHLY variable, depending on your own immune system, your skin type and the age of the stretch marks. Some get a 30% improvement, others up to 80%. An assessment is the very first step Regards Dr Davin Lim, Laser and aesthetic dermatologist. Brisbane, Australia. 


Brisbane Dermatologist
4.7 out of 5 stars 61 reviews

PRP and blood drawing

This is a very important question. Please read the link. In short, most advertised PRP is not very concentrated. The ideal concentration is 6X normal platelet concentration which is 1.5 million platelets per ml. My machine requires 60cc to make 8cc. Any machine that draws 10cc will get you less than 2cc of the concentrated PRP. So to do a large surface area with 6X PRP, you need a lot of blood being drawn and the proper PRP kit. The Magellan TruPRP is my recommendation and I would draw 180cc. It is not cost effective to use many of the other machines nor are they going to get you the right platelet concentration. Remember that you can't draw much more than 180cc without really feeling the effects of the blood loss. Consider adding Infini for stretch mark correction

Steven F. Weiner, MD
Panama City Facial Plastic Surgeon
4.6 out of 5 stars 27 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.