Hair PRP: mechanism
Centrifugation isolates platelet-rich plasma from other blood elements. Platelets contain PDGF, VEGF, TGF and EGF growth factors stimulating regeneration. In hair treatment they activate bulb stem cells, improve scalp blood supply and prolong anagen, the growth phase. Better oxygenated, more active follicles produce thicker, stronger hair. Anti-inflammatory action also improves scalp health and biological balance, enhancing regrowth. Benefits develop progressively across sessions and last months.
Hair PRP indications: which
types of hair loss?
Particularly indicated for mild to moderate loss with present but inactive or weakened follicles.
It suits male or female androgenetic alopecia with or without other treatment.
In women, it effectively addresses diffuse hormonal or postpartum alopecia.
In men, early treatment can stabilise loss and stimulate visible regrowth.
It also treats telogen effluvium, diffuse reversible shedding from stress, fatigue, deficiencies or illness. After transplantation it supports graft survival and healing. It does not work where follicles are absent.
What happens during a hair PRP session
After consultation, a standard arm-vein blood draw is performed while the patient rests comfortably. Centrifugation separates components for PRP. Fine needles or mesotherapy equipment inject affected thinning areas; Dr Romano uses a mesotherapy gun.
Well tolerated with little pain, sometimes anaesthetic cream, sessions last 30 to 45 minutes. Activities resume immediately without downtime.
Avoid intense exercise, sea or lake bathing, pools and prolonged sun for 48 hours.
Session numbers, protocol and
maintenance of results
Optimal treatment generally includes three initial sessions four to six weeks apart, then annual maintenance.
This progressively activates follicles and maintains growth-factor stimulation.
Results generally appear two to three months after starting, with reduced loss, better quality and visible density.
Regular sessions and follow-up stabilise loss and prolong regeneration.
Comprehensive care may combine PRP, nutritional supplements and topical treatment as medically recommended.
What results can hair PRP achieve?
Results are gradual and natural. No new follicles are created; present inactive or weakened ones reactivate. Growth factors stimulate activity and support the growth cycle. Results vary with cause, duration and remaining hair. Over weeks, density, thickness and resilience improve. Shedding clearly reduces, followed by visible regrowth in thin areas. Hair regains radiance, suppleness and strength.
Progress generally follows:
- After the first session: stronger-feeling hair with improved texture, tactile density and radiance.
- After the second: slowing loss reflects greater cycle stability.
- After the third: early regrowth appears with increased density in responsive areas. Responders commonly gain hair mass, reduced thinning and healthier scalp vitality.
Effects are temporary. Maintenance once or twice annually generally preserves benefits, adapted to clinical changes and response.
What are the side effects
of Hair PRP?
Autologous material exclusively from the patient's blood gives excellent tolerance without allergy or rejection risk.
Effects are usually mild, temporary and compatible with activities. Immediate tenderness, mild swelling, redness or local bruising generally resolve in one to three days. Rare tightness or slight inflammation reflects growth-factor stimulation and resolves without specific care. Avoiding exercise, heat and aggressive hair products initially limits reactions and optimises results. Infection is exceptional with strict medical asepsis.
Hair PRP is reliable, natural, well tolerated and safe with a trained doctor.
Benefits and limitations of PRP in
preventing loss of
hair
Main advantages are naturalness, safety, proven growth stimulation and no major side effects. Autologous cells limit allergy or rejection. Minimally invasive, almost painless treatment requires no downtime. It cannot treat advanced baldness with vanished follicles or replace transplantation, but complements it well. Results vary with stage, age, lifestyle and biology, requiring personalised diagnosis.
How much does hair PRP cost?
In Geneva, hair PRP costs 600 CHF per session.
Total cost varies with session numbers, equipment quality and growth-factor concentration.
Three initial monthly sessions are followed by annual maintenance.
Cost reflects rigorous protocol, sterile consumables, certified equipment and medical safety. This aesthetic treatment is not health-insurance covered. Consultation provides a quotation reflecting indication, loss stage and goals.
A placebo-controlled randomised trial assessed PRP in 20 patients with androgenetic alopecia. After three sessions thirty days apart, treated areas showed an average density increase of 45.9 hairs per cm² compared with baseline. Microscopic analyses also showed favourable changes around the follicles. These results concern a small sample and the protocol studied.
Source: Gentile et al., Stem Cells Translational Medicine, 2015.
A double-blind randomised trial involving 25 patients compared PRP injected into one half of the scalp with placebo in the other half. Three sessions one month apart were performed. At six months, hair density was significantly higher on the PRP-treated side than on the control side. This study supports its value as an adjunctive treatment for androgenetic alopecia under the conditions assessed.
A randomised trial involving 40 patients compared two PRP injection schedules for androgenetic alopecia. Three monthly sessions followed by a booster three months later produced a greater increase in hair count at six months than two sessions three months apart: 29.6% versus 7.2%. These results highlight the importance of session timing; the study had no placebo group.
Frequently asked questions about hair PRP in Geneva
Is hair PRP painful?
Generally well tolerated with very fine needles; local anaesthesia may optimise comfort. Moderate tingling rather than true pain requires no activity interruption.
How soon are initial results visible?
Between two and three months: reduced loss first, then quality and density improvement. Regrowth becomes progressively visible, particularly from session three.
Does hair PRP work for all alopecia types?
Primarily where follicles remain, even weakened or inactive. Particularly effective for androgenetic, diffuse or reactive loss and post-transplant regrowth. Not effective without follicles.
How many sessions complete treatment?
Three initially four to six weeks apart, followed by maintenance every four to six months for prolonged, stable effects.
Are there side effects or contraindications ?
Own-blood PRP has no allergy or rejection risk. Minimal redness, swelling or sensitivity disappears within hours. Contraindications include active autoimmune disease, local infection or uncontrolled anticoagulant treatment.
Can PRP replace transplantation?
Not for advanced loss, but it optimises results through blood supply, graft survival and regrowth. An excellent complement.
How long do hair PRP results last?
With maintenance, months or beyond a year. It helps stabilise loss and preserve quality.
Can PRP accompany other hair treatments?
Yes, medical, topical, hormonal or nutritional treatment according to diagnosis. Comprehensive care often optimises effectiveness and stability.
Does hair PRP suit women?
Yes, particularly diffuse, hormonal, postpartum or deficiency-related loss. It restores density, improves scalp quality and stimulates natural, safe regrowth.
Is hair PRP natural?
Yes, entirely autologous: own blood is purified and concentrated without chemicals or foreign substances. Natural, biocompatible and without rejection risk.
Does hair PRP require sick leave?
No. This minor medical procedure requires no downtime; activities resume immediately.
