Platelet-rich plasma (PRP) therapy is a treatment that uses a person’s own blood to promote hair growth. It is considered a minimally invasive procedure and involves extracting a blood sample, processing it to concentrate the platelets, and then injecting this concentration into the scalp. PRP injections are rich in growth factors, which are proteins that can stimulate dormant hair follicles, potentially leading to hair regeneration.
The effectiveness of PRP therapy for hair loss has been the subject of various studies. Research indicates that while PRP therapy may not work for everyone, it can increase hair growth and hair density in individuals with hereditary hair thinning or baldness. For instance, a study showed that participants with androgenic alopecia who underwent three PRP sessions over three months experienced significant increases in hair density within six weeks. However, results can vary, and some individuals may see improvements after just a few sessions, while others may need more treatments before noticing changes.
The number of PRP sessions required for hair regrowth is not uniform; it typically ranges from three to four sessions spaced four to six weeks apart. Maintenance treatments every six to twelve months might be necessary to sustain hair growth. A review of 12 clinical trials found that PRP therapy led to significant improvements in hair density and thickness in the majority of the studies.
It’s important to note that individual responses to PRP therapy can differ, and the treatment is not a one-time solution. Optimal results often require multiple sessions and possibly ongoing maintenance treatments. PRP therapy has been used for decades in wound and injury healing and has recently gained popularity as a non-surgical option for addressing hair loss. As with any medical treatment, it is essential to consult with a healthcare professional to determine if PRP therapy is an appropriate option for an individual’s specific condition and needs.