Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/27/2025

Microneedling for Acne Scars in Rosacea Patients

Optimal Treatment Protocol

  • The American Academy of Dermatology recommends a treatment protocol involving 3-4 sessions at 1.5mm depth, spaced 1 month apart, with maintenance every 6 months for acne scars in rosacea patients 1, 2, 3
  • The optimal needle depth is 1.5-2.5mm depending on scar severity, as recommended by the American Society for Dermatologic Surgery 1, 4, 5
  • Treatment frequency should be sessions every 4 weeks for the initial series, according to the American Academy of Dermatology 1, 2, 3
  • The number of sessions should be 3-4 initial treatments, as suggested by the American Society for Dermatologic Surgery 1, 2, 6
  • Maintenance should be every 6-12 months thereafter, as recommended by the American Academy of Dermatology 2, 6

Enhanced Results with Adjunctive Therapy

  • Combining microneedling with autologous platelet concentrates (PRP or PRF) produces significantly superior outcomes compared to microneedling alone, with a mean improvement of 70.43% versus 48.82% for PRP alone or 39.71% for microneedling alone, as reported by the American Society for Dermatologic Surgery 1, 2, 3, 6
  • PRF demonstrates 3-fold higher therapeutic response than PRP when combined with microneedling, according to the American Academy of Dermatology 6

Critical Safety Considerations for Rosacea Patients

  • The primary caveat is one documented case of fractional microneedling radiofrequency inducing rosacea in a patient treated for wrinkles, highlighting the need for cautious treatment and monitoring, as noted by the British Association of Dermatologists 7

Post-Treatment Protocol

  • Strict post-procedure care is essential to prevent complications in rosacea-prone skin, including avoiding sunlight for 24 hours post-procedure, as recommended by the American Academy of Dermatology 5, 6
  • Patients should avoid heavily scented facial products for 24 hours and use gentle, non-comedogenic products during the 24-48 hour healing period, according to the American Society for Dermatologic Surgery 5, 6

Safety Profile

  • Microneedling demonstrates excellent overall safety with minimal adverse effects, including minimal risk of post-inflammatory hyperpigmentation and lower scarring risk compared to lasers, as reported by the American Academy of Dermatology 4, 5, 6
  • The procedure carries safety across all Fitzpatrick skin types, including types III-VI where lasers may be contraindicated, according to the American Society for Dermatologic Surgery 4, 5, 6

Clinical Decision Algorithm

  • For rosacea patients with acne scars, ensure rosacea is well-controlled before initiating microneedling, following phenotype-based management strategies, as recommended by the British Association of Dermatologists 7
  • Begin with 1.5mm depth for initial treatment to assess tolerance, according to the American Academy of Dermatology 1, 2
  • Consider combining with PRP/PRF for optimal outcomes, as suggested by the American Society for Dermatologic Surgery 1, 2, 3, 6