SCIENCE
How PRP Works
Platelet-rich plasma therapy begins with a fundamental biological truth: your blood contains the molecular machinery required to repair, regenerate, and rebuild tissue. Platelets, often recognized solely for their role in clotting, carry a dense payload of growth factors, cytokines, and bioactive proteins that orchestrate the body's healing response at the cellular level. PRP therapy isolates and concentrates these elements, then delivers them precisely where regeneration is needed most.
The Blood Draw
The process begins with a simple venous blood draw, typically 30 to 60 milliliters depending on the treatment area. This is comparable to a routine lab draw and takes approximately two minutes. The blood is collected in specialized tubes designed to preserve platelet viability and growth factor integrity. At Kassy Wellness, this draw is performed by a licensed clinical professional in the privacy of your home, eliminating the need for clinical waiting rooms or pre-procedure travel.
Centrifugation And Concentration
Your blood is placed in a medical-grade centrifuge that spins at calibrated speeds to separate its components by density. Red blood cells, the heaviest fraction, settle to the bottom. Platelet-poor plasma rises to the top. Between them sits the target layer: a concentrated band of platelets suspended in a small volume of plasma. This platelet-rich fraction contains three to seven times the baseline platelet concentration found in whole blood.
Growth Factor Activation
The concentrated PRP is then activated, either through calcium chloride or through the body's own collagen upon injection. Activation triggers platelet degranulation, releasing a cascade of growth factors including platelet-derived growth factor (PDGF), transforming growth factor beta (TGF-B), vascular endothelial growth factor (VEGF), and epidermal growth factor (EGF). These molecular signals recruit stem cells, stimulate angiogenesis, accelerate extracellular matrix production, and initiate the tissue remodeling sequence.
Injection And Application
The activated PRP is delivered to the target tissue through precise injection or microneedling, depending on the treatment indication. For facial rejuvenation, this may involve intradermal microinjections or application following microneedling to drive growth factors into the dermal matrix. For hair restoration, PRP is injected directly into the scalp at the level of the hair follicle. For orthopedic applications, ultrasound-guided injection ensures placement within the joint capsule or at the site of tendon or ligament pathology. The entire process, from blood draw to final application, is completed within 60 to 90 minutes.
Research: Marx RE. Platelet-rich plasma: evidence to support its use. J Oral Maxillofac Surg. 2004;62(4):489-496. PubMed