PRP (Platelet-Rich Plasma) therapy has become one of the most talked-about treatments for hair loss. But does it actually work? This guide gives you an honest, evidence-based answer — covering what PRP does, who it helps, what the research shows, and how it compares to other options.
What Is PRP Therapy?
PRP therapy uses your own blood to stimulate hair growth. A small amount of blood is drawn, then spun in a centrifuge to concentrate the platelets — tiny cells packed with growth factors that play a key role in tissue repair and regeneration.
The concentrated platelet-rich plasma is then injected into the scalp at the level of the hair follicles. The growth factors released by the platelets stimulate dormant follicles, improve blood supply to the scalp, and extend the active growth phase of existing hairs.
What Does the Research Say?
Multiple peer-reviewed studies have demonstrated that PRP produces measurable improvements in hair density and thickness in patients with androgenetic alopecia (pattern hair loss). A 2019 meta-analysis published in the journal Aesthetic Plastic Surgery found that PRP significantly increased hair count and density compared to placebo controls.
However, results vary between patients. PRP works best when follicles are still alive but dormant — it cannot restore hair in completely bald areas where follicles have been absent for years.
What PRP can do:
- Stimulate dormant follicles to re-enter the growth phase
- Increase hair shaft thickness and calibre
- Slow the progression of hair loss
- Improve scalp health and blood supply
- Accelerate recovery and graft survival after hair transplantation
What PRP cannot do:
- Restore hair in areas of complete follicle loss
- Permanently stop androgenetic alopecia without ongoing maintenance
- Replace hair transplantation for significant hair loss
Who Benefits Most from PRP?
PRP is most effective for:
- Patients in early stages of hair loss (Norwood Stage 1–3) who still have many active follicles
- Patients who want to slow hair loss progression without surgery
- Post-transplant patients using PRP to accelerate graft survival and early growth
- Patients with diffuse thinning rather than defined bald patches
- Women with Female Pattern Hair Loss
PRP is less effective (or ineffective) for patients who have been completely bald in an area for more than 5 years, as the follicles in those areas are typically no longer viable.
How Many Sessions Are Required?
A typical PRP protocol consists of:
- Initial course: 3 sessions spaced 4–6 weeks apart
- Maintenance: 1 session every 4–6 months to sustain results
Results are gradual — most patients notice improvements in hair thickness and reduced shedding within 3–4 months of the initial course.
PRP vs Hair Transplant: Which Is Right for You?
| | PRP | Hair Transplant | |---|---|---| | Best for | Early/mild hair loss | Moderate to severe loss | | Results | Gradual improvement | Permanent new hair | | Permanence | Requires ongoing sessions | Permanent | | Downtime | None | 3–5 days | | Cost per session | Lower | One-time higher cost | | Works on bald areas | No | Yes |
For most patients with Norwood Stage 3 or above, PRP alone will not provide the coverage they want. In these cases, a hair transplant addresses the bald areas while PRP supports and strengthens remaining natural hair.
PRP Combined with Hair Transplantation
At Estetİstanbul, we frequently combine PRP with hair transplantation for optimal results. PRP administered during or immediately after transplantation has been shown to:
- Improve graft survival rates
- Accelerate initial growth (patients see results 4–6 weeks earlier)
- Reduce post-operative redness and swelling
- Strengthen the surrounding natural hair that was not transplanted
This combined approach is particularly beneficial for patients who want to maximise both the transplant result and the health of their existing hair.
What to Expect During a PRP Session
A PRP session at Estetİstanbul takes approximately 45–60 minutes:
- Blood draw (similar to a routine blood test)
- Centrifugation to concentrate platelets (15–20 minutes)
- Topical anaesthetic cream applied to the scalp
- Injection of PRP into the scalp using a fine needle
- Gentle scalp massage to distribute the plasma
There is no downtime. Most patients return to normal activities immediately. Some mild redness or tenderness at injection sites resolves within 24 hours.
Is PRP Safe?
Yes. Because PRP uses your own blood, there is no risk of allergic reaction or rejection. The procedure is minimally invasive and carries a very low risk profile. Side effects are limited to temporary redness, mild swelling, or tenderness at injection sites.
Interested in PRP for hair loss — either as a standalone treatment or combined with a transplant? Send us photos of your hair loss via WhatsApp and our medical team will recommend the right approach for your specific situation — free of charge, within 24 hours.