PRP treatment has become one of the most talked about non-surgical options in dermatology, and for good reason. Short for platelet-rich plasma, PRP uses concentrated growth factors drawn from your own blood to stimulate the body's natural repair processes. Depending on where it is applied, PRP can encourage dormant hair follicles to regrow, smooth the texture and tone of aging skin, or accelerate healing after certain procedures. If you have heard the term and are trying to understand whether it might be right for you, this guide covers how PRP works, what conditions it addresses, and what you can realistically expect from treatment.
How Does PRP Treatment Work?
Platelet-rich plasma is derived from a small sample of your own blood. During a session, blood is drawn from your arm and placed in a centrifuge, which spins the sample at high speed to separate it into its components. The resulting plasma layer is rich in platelets, the cells responsible for clotting and tissue repair. This concentrated plasma is collected and prepared for injection or topical application.
Platelets contain a variety of growth factors, including platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), and transforming growth factor (TGF). When these are delivered directly to a targeted area, they send signals to the surrounding cells to increase activity, form new blood vessels, produce collagen, and accelerate cell turnover. The mechanism is essentially a supercharged version of the body's own healing response, directed precisely where it is needed.
Because PRP is made from your own blood, the risk of allergic reaction is extremely low. There are no synthetic chemicals or foreign substances involved, which makes it well-tolerated by a wide range of patients.
What Conditions Can PRP Treat?
PRP has a growing evidence base across two main categories in dermatology: hair loss and skin rejuvenation. Both applications rely on the same underlying mechanism, but the treatment protocols and outcomes differ based on the area being treated.
For hair loss, PRP is most commonly used to address:
- Androgenetic alopecia, also known as male or female pattern hair loss
- Telogen effluvium, or diffuse shedding triggered by stress, illness, hormonal changes, or nutritional deficiencies
- Post-partum hair loss
- Other forms of hair loss
For skin concerns, PRP is used to improve:
- Fine lines and early wrinkles, particularly around the eyes and mouth
- Uneven skin texture, enlarged pores, and dull complexion
- Post-acne scarring and surface irregularities
- Crepey skin on the face, neck, and hands
Our hair restoration and skin rejuvenation services at Skin & Beauty Center are tailored to each patient's presentation, and your provider will evaluate whether PRP is the most appropriate approach for your specific concerns before proceeding.
What Happens During a PRP Session?
A typical PRP appointment takes between 45 and 75 minutes from start to finish. The process begins with a blood draw, which is then processed in a centrifuge for about 10 to 15 minutes.
Once the PRP is ready, it is injected into the target area using a fine-gauge needle. For scalp treatments, injections are placed in a grid pattern across thinning zones. For facial skin rejuvenation, PRP can be injected or combined with microneedling, which creates microchannels in the skin that allow the plasma to penetrate while also stimulating collagen production on its own.
Most patients can return to their normal activities the same day. Mild tenderness, temporary swelling, or redness at the injection sites is common and typically resolves within 24 to 48 hours. There is no synthetic filler, no anesthesia, and no significant downtime.
How Many PRP Treatments Do You Need to See Results?
The number of sessions needed depends on the condition being treated and its severity. For hair loss, most clinical protocols call for an initial series of three to four treatments spaced four to six weeks apart. Patients typically notice reduced shedding after the first or second session, with visible regrowth and increased density appearing around the three to six month mark after completing the initial series.
For skin rejuvenation, a series of two to three sessions spaced four to six weeks apart is common for initial improvement. Patients with more significant signs of aging or deeper scarring may benefit from additional sessions. Collagen remodeling continues for several months after treatment, so the full result often develops gradually over 90 to 120 days.
Maintenance treatments are important to sustain results over time. For hair loss, sessions every four to six months are often recommended after the initial series. For skin, annual or semi-annual maintenance is typical depending on individual goals. Your provider will review your progress at each visit and adjust your plan accordingly.
How Does PRP Compare to Other Skin and Hair Treatments?
PRP is often considered alongside other non-surgical options, and the right choice depends on the specific concern, the degree of change desired, and how treatments might be combined for better outcomes.
For hair loss, PRP is a regenerative treatment rather than a replacement for missing hair. It works best when follicles are still present but underactive. It is frequently used alongside topical therapies or as a complement to other approaches.
For skin, PRP works differently from treatments like dermal fillers, which add volume directly, or chemical peels, which resurface the outer layers of skin. PRP works from within, stimulating the body to rebuild its own collagen and improve circulation over time. The two approaches are often used together for patients whose goals include both structural improvement and overall skin quality. Many patients combine PRP with other cosmetic procedures for more comprehensive results.
Is PRP Treatment Safe, and Who Is Not a Good Candidate?
PRP has a strong safety profile when administered by a trained medical provider in a clinical setting. Because the treatment uses your own blood, there is no risk of rejection or allergic reaction to the plasma itself. The most frequently reported side effects are localized and temporary, including bruising, swelling, and soreness at injection sites lasting one to two days.
That said, PRP is not appropriate for everyone. Patients who are pregnant, have active skin infections, clotting disorders, certain blood cancers, or are taking specific medications that affect platelet function may not be candidates. A thorough consultation, including a full medical history review, is essential before beginning treatment.
It is also important to receive PRP from a board-certified dermatologist or licensed medical provider rather than in an unregulated spa setting. The quality of the PRP preparation, including the centrifuge protocol and platelet concentration, directly affects outcomes. Sterility and proper technique matter significantly when any injectable treatment is involved.
PRP Treatment in Northridge, CA
Patients in the San Fernando Valley looking for PRP therapy have access to comprehensive dermatologic care at Skin & Beauty Center's Northridge location, where board-certified physicians bring deep clinical expertise to every consultation.
Dr. Shanice McKenzie is a board-certified dermatologist and fellowship-trained dermatopathologist who sees patients at the Northridge office. She earned her medical degree from the UCLA/Drew Medical Education Program at the David Geffen School of Medicine and completed her dermatology residency at USC, where she served as chief resident and was named Physician of the Year in the Department of Dermatology at LAC+USC Medical Center. She returned to UCLA for fellowship training in dermatopathology and has authored over 20 peer-reviewed publications, including research on hair loss and health equity. Clinically, she has a particular focus on alopecia and is experienced in managing both scarring and non-scarring forms of hair loss alongside her broader medical and cosmetic dermatology practice.
To schedule a PRP consultation at our Northridge dermatology office, book your appointment at our Northridge location or call us at (818) 886-3884.
What Should You Ask at Your PRP Consultation?
Your first visit is an opportunity to get a clear, honest picture of whether PRP is the right approach for your specific concern and what realistic outcomes look like for you. Coming prepared can help you get the most out of that conversation. Consider asking your provider about the following.
- Am I a good candidate for PRP based on the stage and pattern of my hair loss or the condition of my skin?
- How many sessions do you recommend for my situation, and how far apart should they be scheduled?
- What results should I realistically expect, and over what timeframe?
- Are there other treatments that would work well alongside PRP for my goals?
- What can I do before and after sessions to support the best possible outcome?
Bringing photos showing how your hair or skin has changed over time, a list of current medications and supplements, and a summary of any treatments you have already tried will help your dermatologist form a complete picture. From there, your provider can design a treatment plan that fits your goals, your schedule, and your budget, with no surprises along the way.
Medically reviewed by Shanice McKenzie, MD, Board-Certified Dermatologist, Skin & Beauty Center, Northridge. Published June 2026.
