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Platelet-rich plasma or PRP hair treatment is a three-step non-surgical medical procedure in which your blood is taken, put inside a centrifuge to concentrate the platelets, and then injected into thinning areas of the scalp. The platelet-derived growth factors stimulate existing follicles, support hair density, and improve thickness in suitable candidates.
Platelet-rich plasma, or PRP, treatment for hair is a non-surgical hair treatment option you can consider for hair thinning. It uses a concentrated portion of your own blood, which is injected into the scalp to stimulate follicular activity.
It supports suitable follicles, but the real question is whether it fits your diagnosis, the stage of thinning, and your broader treatment plan.
What is Platelet-Rich Plasma (PRP) Treatment for Hair?
Platelet-Rich Plasma treatment for hair uses a concentrated portion of your own blood, which is injected into the scalp to stimulate follicular activity. A PRP injection contains plasma as its fluid base and a higher concentration of platelets, which hold growth factors involved in repair and cell signaling.
Understanding each component helps explain what is being delivered during PRP treatment and why the platelets matter most. The table below outlines the key biological components isolated during preparation and their function in scalp therapy:
|
Component |
What it is |
Its role in PRP |
|
Plasma |
The pale-yellow liquid part of blood, made mainly of water, proteins, and salts |
It carries the concentrated platelets in the final preparation. |
|
Platelets |
Small blood components that normally help with clotting and healing |
They store and release the signals that give PRP its biological activity. |
|
Growth factors |
Proteins stored inside the platelets |
They guide processes such as cell activity, tissue repair, and blood vessel support. |
The platelet count is raised above the level found in normal blood so that more platelet-derived signals are present in a small volume of plasma.
Which Growth Factors Are Present in Platelet-Rich Plasma ?
Growth factors are not added as a separate medicine. They are released from small storage units inside the platelets after the platelets become active. The main growth factors studied in PRP for hair include:
- Platelet-derived growth factor supports cell activity and tissue repair.
- Vascular endothelial growth factor supports the formation and function of small blood vessels.
- Epidermal growth factor helps regulate cell growth and renewal.
- Insulin-like growth factor 1 supports cell survival and normal tissue activity.
- Transforming growth factor beta helps control healing and communication between cells.
The strength of a PRP injection therefore depends on the quality and concentration of its platelet-rich portion, not on plasma alone.
What Happens During a Platelet-Rich Plasma Hair Treatment Session?
A PRP hair treatment session moves through four stages, from collecting your blood to placing small injections across the scalp. Most appointments take about an hour, although extra steps may make some sessions longer.
Here is what you can expect once the procedure begins.
-
Blood collection: The clinician draws one or more small tubes of blood from your arm. The amount depends on the preparation system used by the clinic.
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Sample preparation: The blood is placed in a centrifuge and spun at a controlled speed. Some systems use one spin, while others use two, so preparation methods can differ between providers.
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Scalp preparation: The treatment area is cleaned before the PRP injection begins. Ice, numbing cream, or local anaesthesia may be used to reduce discomfort, depending on the clinic and your sensitivity.
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Scalp injections: The clinician places small amounts of PRP at several points across the selected area. The depth, spacing, and total number of injections depend on the treatment plan and the size of the area being covered.
Note: PRP preparation and injection methods are not fully standardised. Clinics may use different centrifuge settings, platelet concentrations, injection depths, or added substances. Ask the provider which protocol they follow.
How Platelet-Rich Plasma Works on Hair Follicles
PRP works by releasing repair signals around active hair follicles after it is injected into the scalp. These signals may support the cells that control hair production, keep follicles in the growth phase longer, and improve their surrounding tissue.
The action of PRP for hair can be understood through three connected stages.
|
Stage |
What happens in the scalp |
Why it matters |
|
Platelet activation |
The injected platelets become active and release signalling proteins near the follicles. |
The signals begin a local repair response around the treated area. |
|
Follicle cell support |
The signals act on dermal papilla cells at the base of the follicle. These cells help control hair growth and cycling. |
Better cell activity may help a weakened follicle continue producing hair. |
|
Growth-phase support |
PRP may encourage follicles to enter or remain in the anagen growth phase. It may also support small blood vessels around them. |
A longer active phase gives the follicle more time to produce a growing strand. |
Recovery Timeline and Expected Results
Recovery after PRP hair treatment takes a few days, and most people return to basic daily activities soon after the session. The table below shows the ideal timeline you can expect:
|
Timeline |
What you may notice in your hair |
|
First 24 hours |
No immediate change in hair density should be expected. |
|
Days 2 to 7 |
PRP is beginning its biological action, but the change cannot yet be seen from the outside. |
|
Weeks 2 to 4 |
Visible thickness or new growth is still unlikely. |
|
Around month 3 |
Measurable increases in hair density |
|
Months 4 to 6 |
Changes in density may become easier to assess. |
|
After 6 months |
You can see the best results during this period. |
Does Platelet-Rich Plasma Cause Initial Hair Fall?
Mild temporary shedding can occasionally happen post-procedure as stimulated follicles shift through their natural growth phases into a new cycle. This short-term shedding is generally a transient response as old, resting strands yield to active new hair growth.
However, ongoing or increased hair fall may also occur if the underlying hair loss condition remains active. You should seek a medical evaluation from your dermatologist if the shedding is heavy, prolonged, or accompanied by new bald patches, redness, or scalp discomfort, as it is not one of the common PRP hair treatment side effects.
Post-Procedure Care and Safety Practices
After PRP treatment, keep your scalp care gentle and follow your clinician's instructions. A simple routine can protect the treated area while allowing prescribed treatment to continue safely.
- Wash gently: Shampooing is generally allowed the next morning. Use light pressure and avoid vigorous scalp massage.
- Handle your hair carefully: You can usually style it soon after treatment, but avoid pulling, scratching, or applying pressure to sensitive areas.
- Return to exercise gradually: Light activity can often restart the following day. Wait several days before strenuous exercise unless your clinician advises otherwise.
- Review pain medications first: Some clinicians advise avoiding aspirin and other non-steroidal anti-inflammatory medicines after PRP. Never stop prescribed aspirin or blood thinners without approval from the doctor managing them.
Can You Use Minoxidil or Finasteride After Platelet-Rich Plasma Treatment?
These medicines treat androgenetic alopecia rather than the injection sites themselves. Their place in your routine depends on your diagnosis and medical suitability.
|
Treatment |
How it may fit after PRP |
|
Topical minoxidil |
It may be combined with PRP when prescribed for pattern thinning. |
|
Oral finasteride |
Men who already take finasteride may usually continue it as directed. It should only be started after medical assessment. |
Who Is Platelet-Rich Plasma Hair Treatment Best Suited For?
PRP hair treatment is most suitable for adults with a confirmed diagnosis of early or moderate androgenetic alopecia. It is usually a poor fit for extensive baldness, unexplained sudden hair fall, active scalp disease, or health conditions that make injections unsafe.
A dermatologist should confirm the type of thinning before recommending PRP, since similar-looking concerns can require very different treatment.
PRP May Be Suitable If:
- Your thinning is gradual and follows a clear male or female pattern.
- You have early or moderate androgenetic alopecia.
- Your scalp is free from active infection or inflammation.
- You do not have a known platelet or bleeding disorder.
- You understand that improvement varies and complete restoration is unlikely.
You May Need Further Evaluation If:
- Your hair fall is sudden, heavy, or has no confirmed cause.
- You have long-standing or extensive baldness.
- Your scalp has redness, pain, scaling, sores, or signs of infection.
- You have a low platelet count, significant anemia, or a bleeding disorder.
- You expect PRP to restore all the hair in a bald area.
Potential Side Effects and Safety Considerations
Most side effects of PRP hair treatment are mild and settle soon after the session. Pain, redness, swelling, itching, bruising, or slight bleeding may occur where the injections are given, while serious reactions are uncommon in published studies.
The possible effects fall into expected injection-site reactions and less common complications that need medical attention.
Common and Temporary Side Effects:
Scalp pain or tenderness may develop during or shortly after the injections. Pain is the most frequently reported side effect of PRP for hair.
- Redness and swelling can appear around the treated points due to the needle.
- Minor bleeding or bruising may occur where the needle enters the skin.
- Itching or a burning feeling may affect the treated area for a short period.
- Headache or scalp tightness may occur after several injections across the same area.
Less Common Risks
PRP treatment still involves needles, so poor technique or inadequate hygiene can raise the risk of complications.
- Infection
- Tissue damage
- Nerve injury
- More significant bleeding
When Should You Contact a Doctor?
Seek medical advice if the pain keeps increasing, the swelling becomes worse, or the scalp develops pus, unusual warmth, or signs of infection. Choosing a qualified medical professional who follows sterile injection practices helps keep avoidable risks low.
Is PRP the Right Choice for You?
PRP is worth considering only when a qualified clinician can explain why it suits your specific pattern of thinning and how your progress will be measured. A proper scalp assessment should come before purchasing a treatment package, since concerns that look similar may have different causes and require different care.
Before committing, ask what result is realistic, how many sessions will be reviewed before continuing, and what the plan will be if your hair does not respond.
Frequently Asked Questions
1. Does PRP regrow hair permanently?
PRP results are not permanent. Benefits usually need maintenance sessions, and stopping treatment may allow pattern thinning to progress again over time in responsive areas.
2. Can I wash my hair after PRP injection?
Most providers advise gentle shampooing the next morning, but aftercare can vary. Follow the treating clinician’s timing because scalp sensitivity and added procedures may change instructions.
3. Is PRP treatment for hair FDA-approved?
PRP may have clearance for other uses, but it is not FDA-approved specifically for hair growth.
4. Is PRP 100% safe?
No. PRP uses your own blood, so allergic reactions are uncommon, but temporary pain, swelling, bleeding, infection, or other injection-related complications can still occur after treatment.
5. How much do 3 sessions of PRP cost?
The cost of PRP is usually around ₹3,000 to ₹15,000 per session, so the cost for 3 sessions can range between ₹9,000 and ₹45,000. The actual cost depends on the clinic, location, type of treatment, add-ons, and other such factors.
References
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Stevens J, Khetarpal S. (2019). Platelet-rich plasma for androgenetic alopecia: A review of the literature and proposed treatment protocol. International Journal of Women's Dermatology. DOI: 10.1016/j.ijwd.2018.08.004 | Official Source URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC6374694/
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Gupta AK, Bamimore MA. (2023). Efficacy of Platelet-Rich Plasma (PRP) for the Treatment of Androgenetic Alopecia: A Systematic Review and Meta-Analysis. Skin Appendage Disorders. DOI: 10.1159/000530080 | Official Source URL: https://pubmed.ncbi.nlm.nih.gov/37533146/
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Justicz N, Derakhshan A, Chen JX, Lee LN. (2020). Platelet-Rich Plasma for Hair Loss: A Review of Methods and Results. Facial Plastic Surgery Clinics of North America. DOI: 10.1016/j.fsc.2020.01.003 | Official Source URL: https://pubmed.ncbi.nlm.nih.gov/37644190/
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Gentile P, Garcovich S. (2022). Systematic Review of Platelet-Rich Plasma in Androgenetic Alopecia: Focus on Preparation Protocols and Clinical Outcomes. Bioengineering. DOI: 10.3390/bioengineering9070303 | Official Source URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9298335/
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Paichitrojjana A, Paichitrojjana A. (2022). Platelet Rich Plasma and Its Use in Hair Regrowth: A Review. Drug Design, Development and Therapy. DOI: 10.2147/DDDT.S356858 | Official Source URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC8922312/
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Hausauer AK, Jones DH. (2019). Evaluating the Efficacy of Different Platelet-Rich Plasma Regimens for Management of Androgenetic Alopecia: A Single-Center, Blinded, Randomized Clinical Trial. Dermatologic Surgery. DOI: 10.1097/DSS.0000000000001835 | Official Source URL: https://pubmed.ncbi.nlm.nih.gov/30882509/
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Johns Hopkins Medicine. (N.D.). Platelet-Rich Plasma (PRP) Treatment. Johns Hopkins Medicine Health Library. Official Source URL: https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/plateletrich-plasma-prp-treatment
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