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Hair Restoration questions

Answers drawn from published studies and FDA labels. Treatment depends on an exam by a licensed physician.

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Answers

What patients ask

What is the difference between FUE and FUT?

FUT removes one strip of scalp and splits it into follicular units, leaving a linear scar. FUE punches out each unit one at a time, leaving small dot scars and no line. ASPS calls FUE the newer, more common method. FUT does not require shaving the recipient area.[1][2][3]

Who is a good candidate for a hair transplant?

Someone with enough healthy donor hair and a clear, stable pattern of loss. Donor density over 80 units per cm2 is excellent; under 40 is less suitable. AAD says men in their 20s may be asked to wait and start medicine first.[1][2]

How long does hair transplant surgery take?

4 to 8 hours, under local anesthesia. Large sessions may need a few more hours the next day. FUE megasessions of 3,000 to 6,000 units took 6 to 12 hours in one series.[1][2]

When will I see hair transplant results?

Transplanted hairs fall out 2 to 8 weeks after surgery. By month 3 the hair can look thinner. Most patients see results at 6 to 9 months; some take 12.[1]

Is a hair transplant permanent?

Transplanted follicles keep their donor traits and keep growing. Native hair around them can keep thinning, so a dermatologist may add finasteride or minoxidil. In 751 women, 18% had a second session at about 4 years.[1][2][3]

Can women have hair transplants?

Yes, when donor hair is adequate and the cause is female pattern hair loss rather than alopecia areata, telogen effluvium or active scarring alopecia. Medicine should continue after surgery to slow loss elsewhere.[1][2][3]

Does finasteride work, and what are the side effects?

In trials of 1,553 men it added 107 hairs over placebo in a 5.1 cm2 area at 1 year and 138 at 2 years. Sexual side effects affected 1.2% to 1.8%, against 0.7% to 1.3% on placebo. It is not for women.[1][2]

Is oral minoxidil FDA-approved for hair loss?

No. Low-dose tablets of 0.25 to 5 mg a day are prescribed off-label. A 2025 consensus of 43 specialists set dosing and monitoring. The most common side effect is unwanted body hair.[1][2][3]

Does PRP work for hair loss?

A meta-analysis of 9 trials and 238 patients found higher hair density than placebo at 3 and 6 months, but no difference in hair count or thickness. AAD describes monthly sessions for 3 months, then every 3 to 6 months.[1][2]

Do laser caps and combs work?

The HairMax LaserComb is FDA-cleared for men at Norwood IIa to V. A meta-analysis of 11 sham-controlled trials found higher hair density in men and women. AAD says it takes several sessions a week for months, and not every user regrows hair.[1][2][3]

Sources

Sources

Checked 2026-10-25. Every fact links to its source.

  1. ASPS, Hair Transplantation and Restoration
  2. AAD, A hair transplant can give you permanent, natural-looking results
  3. AAD, Hair loss: diagnosis and treatment
  4. PubMed, Goldin et al., Hair Transplantation, StatPearls 2025
  5. FDA, Drugs@FDA, NDA 019501 ROGAINE, approval history
  6. FDA, Drugs@FDA, NDA 020788 PROPECIA, approval history
  7. FDA, 510(k) K060305, HairMax LaserComb, decision January 18, 2007
  8. FDA, 510(k) K103428, ARTAS System, Restoration Robotics, decision April 4, 2011
  9. PubMed, Kanti et al., Evidence-based (S3) guideline for androgenetic alopecia in women and men, J Eur Acad Dermatol Venereol 2018
  10. PubMed, van Zuuren et al., Interventions for female pattern hair loss, Cochrane Database Syst Rev 2016
  11. PubMed, Queen and Avram, Hair transplantation: state of the art, Dermatol Surg 2025
  12. PubMed, Donor harvesting: follicular unit excision, J Cutan Aesthet Surg 2018
  13. PubMed, Gupta et al., Progression of surgical hair restoration techniques, J Cutan Med Surg 2015
  14. FDA, PROPECIA (finasteride) prescribing information, 2022
  15. FDA, ROGAINE (minoxidil) solution and foam labeling, 2026
  16. PubMed, Muller Ramos et al., Female-pattern hair loss: therapeutic update, An Bras Dermatol 2023
  17. PubMed, Adil and Godwin, Effectiveness of treatments for androgenetic alopecia: meta-analysis, J Am Acad Dermatol 2017
  18. AAD, Female pattern hair loss
  19. PubMed, Ong et al., Antiandrogen therapy for female pattern hair loss, J Am Acad Dermatol 2025
  20. PubMed, Kaufman et al., Finasteride in the treatment of men with androgenetic alopecia, J Am Acad Dermatol 1998
  21. PubMed, Headington, Transverse microscopic anatomy of the human scalp, Arch Dermatol 1984
  22. PubMed, Bernstein and Rassman, The aesthetics of follicular transplantation, Dermatol Surg 1997
  23. PubMed, Hamilton, Patterned loss of hair in man: types and incidence, Ann N Y Acad Sci 1951
  24. PubMed, Norwood, Male pattern baldness: classification and incidence, South Med J 1975
  25. PubMed, Krupa Shankar et al., Male androgenetic alopecia: population-based study in 1,005 subjects, Int J Trichology 2009
  26. PubMed, Ludwig, Classification of the types of androgenetic alopecia occurring in the female sex, Br J Dermatol 1977
  27. PubMed, Camacho-Martinez, Hair loss in women, Semin Cutan Med Surg 2009
  28. PubMed, Bernstein and Rassman, The logic of follicular unit transplantation, Dermatol Clin 1999
  29. PubMed, Rassman et al., Follicular unit extraction: minimally invasive surgery for hair transplantation, Dermatol Surg 2002
  30. PubMed, Uebel et al., Female pattern hair loss: follicular unit transplantation, 751 patients, Plast Reconstr Surg 2021
  31. PubMed, Nirmal et al., A study of donor area in follicular unit hair transplantation, J Cutan Aesthet Surg 2013
  32. PubMed, Liu et al., Scoping review on complications in modern hair transplantation, Aesthetic Plast Surg 2025
  33. PubMed, Complications in follicular unit excision hair transplantation, Front Med 2026
  34. FDA, 510(k) summary K103428, ARTAS System
  35. PubMed, A comprehensive review of advanced follicular unit excision systems, J Cutan Aesthet Surg 2025
  36. PubMed, Olsen et al., 5% vs 2% topical minoxidil and placebo in men, J Am Acad Dermatol 2002
  37. PubMed, Gupta et al., Minoxidil: a comprehensive review, J Dermatolog Treat 2022
  38. PubMed, Penha et al., Oral vs topical minoxidil for male androgenetic alopecia, JAMA Dermatol 2024
  39. PubMed, Akiska et al., Low-dose oral minoxidil Delphi consensus statement, JAMA Dermatol 2025
  40. PubMed, Vano-Galvan et al., Safety of low-dose oral minoxidil, 1,404 patients, J Am Acad Dermatol 2021
  41. FDA, AVODART (dutasteride) prescribing information, 2020
  42. PubMed, Gubelin Harcha et al., Dutasteride vs placebo and finasteride, 917 men, J Am Acad Dermatol 2014
  43. PubMed, Zhang et al., Platelet-rich plasma for androgenetic alopecia: meta-analysis of RCTs, J Cutan Med Surg 2023
  44. FDA, 510(k) summary K060305, HairMax LaserComb
  45. PubMed, Liu et al., Low-level laser therapy for androgenic alopecia: meta-analysis, Lasers Med Sci 2019
  46. PubMed, Barreto, Hair transplantation: past, present, and future, Acta Med Port 1998
  47. PubMed, Orentreich, Autografts in alopecias and other selected dermatological conditions, Ann N Y Acad Sci 1959
  48. ASPS, Hair transplant recovery
  49. ASPS, Hair transplant risks and safety
  50. PubMed, Li et al., Follicular unit extraction megasession, 273 patients, J Cosmet Dermatol 2020