device

PRP

34 linked papers with evidence grade A. Best indexed study enrolled 2888 participants.

Product links

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Evidence Grade

A

Linked Papers

34

Participants

6,228

Average Efficacy

28.54 hairs/cm2

Summary

34 linked papers with evidence grade A. Best indexed study enrolled 2888 participants.

Best indexed study: Regenerative medicine in the treatment of specific dermatologic disorders: a systematic review of randomized controlled clinical trials. (2024)

Side Effects

No significant adverse events reported1 study
No serious adverse events related to PRP or control treatments were reported.1 study
sexual adverse effects (finasteride/dutasteride)1 study
hypertrichosis (oral minoxidil)1 study
dizziness (oral minoxidil)1 study
lower limb edema (oral minoxidil)1 study

Linked studies

Papers behind PRP

Confidence

low

Combining PRP with pharmacological support during FUE hair transplantation significantly improves follicle survival, growth rates, and hair strength compared to pharmacological support alone.

Extracted key result

significantly improved follicle growth rates

30 participants

PRP alone and in combination with minoxidil significantly improved hair count, density, terminal hair count, and increased the anagen ratio; the combination also significantly reduced vellus hair count and density.

Extracted key result

Pending structured analysis

45 participants

Phase I Clinical Trial: Evaluating the Efficacy, Safety, and Patient Satisfaction of Platelet-Rich Plasma (PRP) Injections and Microneedling for Androgenetic Alopecia Treatment.

Journal of cosmetic dermatology · 2025 · Nilforoushzadeh MA, Roohaninasab M, Behrangi E, Jafarzadeh A, Nouri M, Zare S, Zare S

Confidence

moderate

Both PRP injections and microneedling significantly increased hair count and thickness after two months, with microneedling showing a greater percent increase in hair count (88.4% vs 62.4%) and PRP showing a slightly greater increase in hair thickness (58.6% vs 51.3%).

Extracted key result

62.4% %

40 participants

The role of microtrauma in hair regrowth and regeneration in non-scarring alopecia.

Italian journal of dermatology and venereology · 2025 · Tay WC, Cheng SW, Lee JS, Clavel C, Wang EC

Confidence

moderate

Microtrauma-based treatments like microneedling, lasers, and PRP increase hair density and thickness in androgenetic alopecia and promote regrowth in alopecia areata.

Extracted key result

increased not specified

Sample size not extracted

A Canadian Consensus on Androgenetic Alopecia: Approach and Management.

Journal of cutaneous medicine and surgery · 2025 · Landells I, Chow E, Gupta AK, Jasso Olivares JC, Thuraisingam T, Ahluwalia R, Tan JKL, Pratt M, Yadav G, Chivers Q, Vezina N, Laforest T, Raad E, Owen J, Dayeh NR

Confidence

moderate

A consensus of experts identified seven recommended interventions for AGA, including oral and topical finasteride, dutasteride, and minoxidil, while identifying 17 interventions that are not recommended.

Extracted key result

7 interventions

Sample size not extracted

Chemotherapy-Induced Alopecia by Docetaxel: Prevalence, Treatment and Prevention.

Current oncology (Toronto, Ont.) · 2024 · Perez AM, Haberland NI, Miteva M, Wikramanayake TC

Confidence

moderate

Scalp cooling is the current standard for preventing chemotherapy-induced alopecia; minoxidil, photobiomodulation, and PRP are used to promote hair regrowth, though supporting evidence varies.

Extracted key result

Pending structured analysis

Sample size not extracted

Regenerative medicine in the treatment of specific dermatologic disorders: a systematic review of randomized controlled clinical trials.

Stem cell research & therapy · 2024 · Jafarzadeh A, Pour Mohammad A, Keramati H, Zeinali R, Khosravi M, Goodarzi A

Confidence

high

Regenerative medicine showed up to 68.4% improvement in androgenetic alopecia and up to 71% improvement in vitiligo across the reviewed RCTs, indicating promising efficacy for these dermatologic disorders.

Extracted key result

68.4 %

2888 participants

Status of research on the development and regeneration of hair follicles.

International journal of medical sciences · 2024 · Liu D, Xu Q, Meng X, Liu X, Liu J

Confidence

moderate

Emerging therapies such as low-level laser therapy, microneedling, platelet-rich plasma, and stem cell therapy show promise for promoting hair regrowth, while conventional treatments like minoxidil and finasteride remain effective but have limitations.

Extracted key result

Pending structured analysis

Sample size not extracted

Management of androgenic alopecia: a systematic review of the literature.

Journal of cosmetic and laser therapy : official publication of the European Society for Laser Dermatology · 2024 · Rosenthal A, Conde G, Greco JF, Gharavi NM

Confidence

high

Various over-the-counter, prescription, and procedural treatments successfully promote hair growth, suggesting that a multifaceted, individualized approach is most effective.

Extracted key result

Pending structured analysis

Sample size not extracted

A comprehensive review of platelet-rich plasma for the treatment of dermatologic disorders.

The Journal of dermatological treatment · 2023 · Pixley JN, Cook MK, Singh R, Larrondo J, McMichael AJ

Confidence

low

PRP shows promise for improving hair density in androgenic alopecia and provides subjective benefits in photoaging, melasma, vitiligo, and wound healing, but objective evidence is limited and heterogeneous.

Extracted key result

Pending structured analysis

Sample size not extracted

Platelet-rich plasma for the treatment of alopecia: a systematic review and meta-analysis.

Blood transfusion = Trasfusione del sangue · 2023 · Cruciani M, Masiello F, Pati I, Marano G, Pupella S, De Angelis V

Confidence

low

PRP injections increased hair density by about 25.6 hairs/cm2 compared to saline injections over medium-term follow-up, but the evidence is low quality; benefit for alopecia areata remains uncertain.

Extracted key result

25.6 hairs/cm2

1117 participants

What's New in Therapy for Male Androgenetic Alopecia?

American journal of clinical dermatology · 2023 · Saceda-Corralo D, Domínguez-Santas M, Vañó-Galván S, Grimalt R

Confidence

moderate

Various treatments including 5-alpha reductase inhibitors, oral minoxidil, and PRP show efficacy, though evidence for some newer or non-pharmacological methods remains limited.

Extracted key result

0.25 %

Sample size not extracted

Treatment of Androgenetic Alopecia: Current Guidance and Unmet Needs.

Clinical, cosmetic and investigational dermatology · 2023 · Kaiser M, Abdin R, Gaumond SI, Issa NT, Jimenez JJ

Confidence

low

Standard treatments like topical minoxidil and oral finasteride are established, while newer modalities like PRP, LLLT, and oral minoxidil show encouraging results but lack standardized protocols.

Extracted key result

Pending structured analysis

Sample size not extracted

Alopecia and platelet-derived therapies.

Stem cell investigation · 2022 · Cole JP, Cole MA, Insalaco C, Cervelli V, Gentile P

Confidence

low

Platelet lysate (PL) significantly improved hair regrowth compared to activated PRP and saline in hair transplant grafts, with near-complete regrowth at 4 months; PL injection alone also boosted follicular unit and hair density by 50% and 122% respectively at 7 months.

Extracted key result

50 %

4 participants

Applications of the regenerative capacity of platelets in modern medicine.

Cytokine & growth factor reviews · 2022 · Cecerska-Heryć E, Goszka M, Serwin N, Roszak M, Grygorcewicz B, Heryć R, Dołęgowska B

Confidence

low

PRP contains growth factors that promote wound healing and hair follicle regeneration, showing potential for treating alopecia and improving skin condition, though efficacy varies and standardization is needed.

Extracted key result

Pending structured analysis

Sample size not extracted

Lasers, lights, and compounds for hair loss in aesthetics.

Clinics in dermatology · 2022 · Ring CM, Finney R, Avram M

Confidence

moderate

The review discusses various promising topical, oral, and energy-based therapies, noting growing evidence for their efficacy in treating hair loss.

Extracted key result

Pending structured analysis

Sample size not extracted

Advances in hair growth.

Faculty reviews · 2022 · Wall D, Meah N, Fagan N, York K, Sinclair R

Confidence

low

The review outlines various current and emerging therapies for hair loss, including pharmacological agents, devices, and cellular therapies.

Extracted key result

Pending structured analysis

Sample size not extracted

Microneedling and Its Use in Hair Loss Disorders: A Systematic Review.

Dermatology and therapy · 2022 · English RS, Ruiz S, DoAmaral P

Confidence

low

Microneedling serves as an effective adjunct therapy for androgenic alopecia when paired with minoxidil, growth factors, or PRP, and shows promise as a standalone therapy for alopecia areata.

Extracted key result

0.50-2.50 mm

1127 participants

Platelet Rich Plasma and Its Use in Hair Regrowth: A Review.

Drug design, development and therapy · 2022 · Paichitrojjana A, Paichitrojjana A

Confidence

low

The review indicates that PRP can be used effectively for the treatment of hair loss, though the exact mechanism of action is not yet fully understood.

Extracted key result

Pending structured analysis

Sample size not extracted

Alopecia Areata: an Update on Etiopathogenesis, Diagnosis, and Management.

Clinical reviews in allergy & immunology · 2022 · Zhou C, Li X, Wang C, Zhang J

Confidence

high

Traditional treatments like corticosteroids and minoxidil have limited efficacy and high recurrence rates, while new strategies like JAK inhibitors and biologics are emerging.

Extracted key result

up to 2 %

Sample size not extracted

Across 12 included trials, PRP showed a positive treatment effect in 84% of studies, with 50% demonstrating statistically significant improvement on objective measures, and consistent gains in hair density and thickness; it was reported as a safe and effective alternative to minoxidil and finasteride with few adverse effects.

Extracted key result

improved reported as hair density and hair thickness improvement

Sample size not extracted

The review suggests that autologous stem cell and PRP therapies may promote hair regrowth by activating Wnt/β‑catenin signaling, prolonging the anagen phase, and reducing apoptotic signals, although specific quantitative efficacy outcomes are not reported.

Extracted key result

Pending structured analysis

Sample size not extracted

Confidence

moderate

PRP shows promise for promoting hair regrowth and improving skin quality, particularly when combined with microneedling or laser therapies, although standardized treatment protocols are lacking.

Extracted key result

Pending structured analysis

Sample size not extracted

A review of the treatment of male pattern hair loss.

Expert opinion on pharmacotherapy · 2020 · York K, Meah N, Bhoyrul B, Sinclair R

Confidence

moderate

Finasteride and minoxidil can halt disease progression but only yield partial hair regrowth; early initiation improves outcomes, and PRP may be considered for patients unresponsive to medical therapy.

Extracted key result

Pending structured analysis

Sample size not extracted

Efficacy of non-surgical treatments for androgenetic alopecia: a systematic review and network meta-analysis.

Journal of the European Academy of Dermatology and Venereology : JEADV · 2019 · Gupta AK, Mays RR, Dotzert MS, Versteeg SG, Shear NH, Piguet V

Confidence

low

Low-level laser therapy showed superior relative effects for hair regrowth compared to other non-surgical treatments, while PRP, finasteride, minoxidil, and dutasteride demonstrated approximately equivalent mean changes in hair count.

Extracted key result

LLTT superior; PRP, finasteride 1 mg (male), finasteride 1 mg (female), minoxidil 5%, minoxidil 2%, dutasteride (male) approximately equivalent mean change in hair count

Sample size not extracted

Hair Transplantation Controversies.

Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] · 2017 · Avram MR, Finney R, Rogers N

Confidence

moderate

Hair transplant surgery is effective for creating natural-appearing hair in men, though optimal harvesting techniques and adjunctive therapies remain subjects of debate.

Extracted key result

consistently natural appearing hair qualitative

Sample size not extracted