How is PRP for hair done?
A small amount of blood is drawn, plasma is separated in a centrifuge and then applied to the scalp with fine needles. The procedure is carried out under sterile conditions.
The area is cleaned and, if needed, superficial numbing is applied. Many small injections are made into the scalp.
Slight redness, tenderness or swelling may be seen afterwards and usually settles quickly.
Does PRP work for hair loss?
Some studies report favourable changes in hair density, but protocols differ and the level of evidence is limited. A result cannot be promised.
The response varies with the type and stage of loss. It is mostly considered in early and mid stages; new hair should not be expected in areas where follicles have been completely lost.
The method is usually considered in addition to medical treatment.
Who is it suitable for, and who is it not?
Adults with early or mid-stage loss may be assessed. It is generally not performed with blood disorders, active scalp infection, pregnancy or some cancer conditions.
Use of blood thinners, platelet disorders and active infection need care. It is not recommended in pregnancy and breastfeeding.
Always mention the medicines you take and your past illnesses at consultation.
How many sessions are needed and when are results seen?
The number of sessions varies with the person and protocol; a plan often covers several sessions followed by maintenance sessions. Changes are assessed over months.
Because the hair cycle is slow, the effect is not immediate. Repeat sessions may be needed to maintain results.
The doctor discusses the plan and expectations with you at consultation.
What are the risks and side effects?
Redness, tenderness, swelling, headache and, rarely, infection may occur at the injection site. Because your own blood is used, an allergic reaction is not expected, but other risks are not eliminated entirely.
Contact your doctor if you have severe pain, fever or increasing redness. Do not intervene on your own.
It matters that the procedure is done in a healthcare facility by an authorised doctor.
Frequently asked questions
Does PRP hurt?
Because of the many injections, some discomfort may be felt. Perception varies; the doctor discusses suitable comfort measures.
When does hair appear after PRP?
Changes are usually assessed over months. The response differs from person to person.
Does PRP replace hair transplantation?
No. PRP is a supportive method; hair transplantation is a separate surgical procedure.
Is PRP the same as mesotherapy?
No. PRP is a person’s own plasma; in mesotherapy various ingredients are given by micro-injection.
Can I wash my hair after the procedure?
Follow the instructions the doctor gives; timing varies with the protocol.
Sources (4)
- An Bras Dermatol: Is autologous platelet-rich plasma capable of increasing hair density in patients with androgenic alopecia? A systematic review and meta-analysis of randomized clinical trials (2024)
- Skin Health Dis (Abid A, et al.): Comparison of the efficacy of platelet-rich plasma with topical minoxidil in treating patients with androgenetic alopecia: a systematic review of clinical trials (2025)
- European Dermatology Forum: S3 - European Dermatology Forum Guideline for the Treatment of Androgenetic Alopecia in Women and in Men (2018)
- American Academy of Dermatology: Hair loss: Diagnosis and treatment
This content is for general information and does not replace a personal medical assessment.