PRP Scalp Injections for Hair Growth: Everything You Need to Know

PRP Scalp Injections for Hair Growth: Everything You Need to Know

In a world where appearance goes hand in hand with self-confidence, hair plays a central role in how we present ourselves. Hair loss—whether gradual thinning, receding hairlines, or patchy shedding—affects millions of people and can significantly impact self-esteem. At Dr Refresh Med Spa in West Hollywood, we offer PRP scalp injections as a proven, natural solution for hair restoration.

PRP (Platelet-Rich Plasma) therapy harnesses the regenerative power of your own blood to stimulate dormant hair follicles, strengthen existing hair, and encourage new growth—all without surgery, synthetic drugs, or extended downtime.

What Is PRP and How Does It Work for Hair Loss?

Platelet-Rich Plasma is derived from your own blood. Platelets are tiny blood cells rich in growth factors—proteins that play a crucial role in healing and tissue regeneration. When concentrated and injected into the scalp, these growth factors:

• Stimulate hair follicle stem cells
• Increase blood supply to hair follicles
• Prolong the anagen (active growth) phase of the hair cycle
• Reduce inflammation that contributes to follicle miniaturization
• Strengthen and thicken existing hair strands

The science behind PRP for hair loss is well-established. According to research published in the National Institutes of Health, PRP therapy has demonstrated significant improvements in hair density and thickness in patients with androgenetic alopecia.

The PRP Hair Restoration Process at Dr Refresh

Step 1: Blood Draw

A small amount of blood (typically 20–60ml) is drawn from your arm, similar to a standard blood test.

Step 2: Centrifugation

The blood sample is placed in a medical centrifuge and spun at high speed for approximately 10 minutes. This separates the blood into its components, concentrating the platelets into a plasma-rich layer.

Step 3: Activation (Optional)

Some protocols use calcium chloride or thrombin to activate the platelets before injection, potentially increasing growth factor release.

Step 4: Scalp Injections

Using a fine needle, the concentrated PRP is injected into targeted areas of the scalp experiencing thinning or loss. The injections are spaced approximately 1cm apart across the treatment zone. Most patients require 20–30 injections per session.

Step 5: Post-Treatment Care

The entire procedure takes 45–60 minutes. You can return to normal activities immediately, with only minor scalp tenderness for 1–2 days.

Who Is a Good Candidate for PRP Scalp Injections?

PRP hair restoration delivers the best results for:

• Androgenetic alopecia (male/female pattern baldness) — The most common form of hair loss, PRP is particularly effective in early to moderate stages
• Alopecia areata — Autoimmune hair loss responds positively to PRP’s anti-inflammatory properties
• Telogen effluvium — Stress-related or postpartum hair shedding
• Diffuse thinning — Overall hair thinning without complete baldness
• Hair transplant enhancement — PRP is often combined with hair transplant procedures to improve graft survival and results

PRP is most effective when hair follicles are still present but dormant or weakened. Patients with completely bald areas where follicles are no longer viable may see limited results.

What Results Can You Expect?

PRP scalp injections produce gradual, natural-looking results:

• Months 1–2: Reduced shedding, hair may feel stronger
• Months 2–4: New fine hairs emerge in thinning areas
• Months 4–6: Visible improvement in hair density and thickness
• Months 6–12: Full results from initial treatment series

Most patients undergo an initial series of 3 treatments spaced 4–6 weeks apart, followed by maintenance treatments every 6–12 months to sustain results.

How Does PRP Compare to Other Hair Loss Treatments?

Understanding how PRP fits into the hair restoration landscape helps set realistic expectations:

• PRP vs. Minoxidil (Rogaine): PRP addresses the root cause (follicle stimulation) rather than just slowing loss. PRP effects can last longer and don’t require daily application. Many patients combine both for synergistic results.
• PRP vs. Finasteride: Finasteride works hormonally and has systemic side effects. PRP is localized with no hormonal impact, making it appropriate for both men and women.
• PRP vs. Hair Transplant: Hair transplants offer permanent redistribution of existing follicles. PRP cannot create new follicles but can significantly improve the quality and density of existing ones. They work best together.
• PRP vs. Laser Therapy (LLLT): Both are non-invasive, but PRP delivers more concentrated growth factors directly to follicles. Some patients combine both modalities.

The Science Behind PRP Hair Restoration

PRP for hair loss has been studied extensively. Key growth factors in PRP that benefit hair follicles include:

• PDGF (Platelet-Derived Growth Factor): Promotes cell proliferation and angiogenesis (new blood vessel formation)
• VEGF (Vascular Endothelial Growth Factor): Increases blood supply to follicles
• EGF (Epidermal Growth Factor): Stimulates cell growth and differentiation
• IGF-1 (Insulin-like Growth Factor): Promotes hair follicle survival
• FGF (Fibroblast Growth Factor): Involved in follicle cycling and wound healing

The American Academy of Dermatology recognizes PRP as a legitimate treatment option for androgenetic alopecia with an emerging evidence base.

Combining PRP with Other Hair Restoration Approaches

At Dr Refresh Med Spa, we create comprehensive hair restoration plans that may combine:

• PRP + Microneedling: Microneedling the scalp before PRP injection enhances absorption and stimulates additional collagen production
• PRP + Exosomes: Combining PRP with exosome therapy amplifies growth factor signaling
• PRP + Medical-grade supplements: Nutraceuticals like biotin, zinc, and iron optimize the hair growth environment
• PRP + Topical treatments: Prescription-strength minoxidil or peptide serums enhance and maintain PRP results

Explore our comprehensive PRP treatment menu and related med spa services at Dr Refresh.

Recovery and Aftercare for PRP Scalp Injections

One of PRP’s greatest advantages is its minimal downtime. After your treatment:

• Mild scalp tenderness, redness, or swelling is normal and resolves within 24–48 hours
• Avoid washing your hair for 8–12 hours post-treatment
• Skip strenuous exercise for 24 hours to minimize swelling
• Avoid blood-thinning medications or supplements (aspirin, ibuprofen, fish oil) for 3–5 days before and after treatment
• Protect your scalp from direct sun exposure for 48 hours
• Do not apply chemical treatments (color, relaxers) for 72 hours

Is PRP Hair Treatment Safe?

PRP is considered extremely safe because it uses your own biological material—eliminating the risk of allergic reaction or rejection. The main risks are minor and include:

• Temporary scalp tenderness or soreness
• Minor bruising at injection sites
• Mild swelling (particularly around the forehead/temples)
• Rare risk of infection (minimized with sterile technique)

All PRP procedures at Dr Refresh are performed using strict sterile protocols by trained medical professionals under physician oversight.

How Much Do PRP Scalp Injections Cost?

PRP hair restoration pricing varies based on treatment area size and protocol. At Dr Refresh Med Spa in West Hollywood, individual sessions and package pricing are available. Package deals for the recommended 3-session initial series offer significant savings compared to individual sessions.

Contact us for current pricing and to ask about financing options.

Frequently Asked Questions

How soon will I see results from PRP scalp injections?

Most patients notice reduced shedding within 2–3 months and new hair growth by months 4–6. Full results from an initial series are typically visible at 6–12 months.

How many PRP sessions do I need for hair growth?

We recommend an initial series of 3 sessions spaced 4–6 weeks apart, followed by maintenance treatments every 6–12 months to sustain results.

Does PRP hair treatment work for women?

Absolutely. PRP is highly effective for female pattern hair loss, postpartum shedding, and diffuse thinning. Women often respond even better than men because they typically seek treatment at earlier stages of hair loss.

Can PRP regrow hair on a completely bald scalp?

PRP works best when hair follicles are still present, even if dormant or weakened. In areas of complete baldness where follicles are no longer viable, PRP will have limited effect. A consultation will help determine if you’re a good candidate.

Is PRP better than Minoxidil for hair loss?

They work through different mechanisms and can complement each other. PRP directly stimulates follicles with growth factors, while Minoxidil improves scalp circulation. Many patients use both for optimal results.

Why Choose Dr Refresh Med Spa for PRP Hair Restoration in Los Angeles?

Located at 1106 N La Cienega Blvd Suite 206, West Hollywood, CA 90069, Dr Refresh Med Spa brings clinical excellence and personalized care to every hair restoration patient. Our team combines deep medical expertise with the latest PRP technology to deliver results you can see and feel.

Call us at (323) 530-2879 or book your consultation online to start your hair restoration journey.

Explore Related Services