PRP Hair Treatment

Androgenetic alopecia has the strongest body of PRP research. Recent systematic reviews and meta-analyses of randomized trials report that PRP can improve hair-density measures compared with placebo or baseline in some patients. However, the studies use different PRP preparation methods, platelet concentrations, activation protocols, injection techniques and treatment schedules, producing substantial heterogeneity.

The current Dermatrix page incorrectly describes low-level laser/LED helmet therapy in the “How Does It Work?” section. That content should be removed completely from this PRP service page.

• Hair-Loss Review: The treating clinician confirms the diagnosis, current hair-loss pattern, relevant medical history and treatment plan.
• Scalp Preparation: The scalp is prepared according to clinic protocol. Comfort measures or local numbing may be considered depending on the technique.
• Blood Draw & PRP Processing: Blood is collected and processed using the clinic’s PRP system.
• Scalp Injections: The prepared PRP is injected into planned scalp areas.
• Aftercare: Instructions are provided for scalp care, activity, hair washing and expected temporary local effects.

Systematic reviews of randomized and prospective studies generally find that PRP has potential to increase hair density in androgenetic alopecia. A 2024 systematic review including eight randomized trials and one cohort study found significant improvements in hair density in several studies, but concluded that low evidence quality, moderate risk of bias and high heterogeneity limit firm conclusions.

Another 2024 meta-analysis of randomized trials found a pooled increase in hair density but also reported very high heterogeneity, low-quality evidence and publication bias. This is important for patient communication: PRP is a reasonable evidence-informed option for selected pattern hair loss, but there is no single standardized PRP protocol or guaranteed degree of regrowth.

There is no universally standardized PRP schedule for hair loss. Many clinical protocols use an initial series of treatments spaced several weeks apart, followed by reassessment and possible maintenance. The number of sessions varies across studies because PRP preparation, dose, injection method and patient characteristics differ.

Dermatrix should publish its own verified treatment schedule only after confirming the exact protocol used in clinic. Avoid stating that every patient will see improvement after exactly three or four sessions.

Hair growth occurs slowly, so PRP outcomes should be assessed over months rather than days or immediately after a session. Studies commonly evaluate hair density, count or shaft measures at three to six months and sometimes longer. The visible timeline can differ according to the diagnosis, degree of miniaturization, baseline density, concurrent treatment and biological response.

Use standardized photographs and, when possible, objective scalp assessment to track progress. Do not promise 'natural regrowth,' a fixed density increase or a guaranteed visible result after a set number of treatments.