Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 11/2/2025

Microneedling Treatment for Melasma

Introduction to Treatment Protocol

  • The American Academy of Dermatology recommends microneedling combined with topical tranexamic acid or platelet-rich plasma (PRP) for melasma treatment, with a protocol consisting of 3-4 sessions spaced 2-3 weeks apart, followed by maintenance treatments every 6 months 1, 2

Treatment Technique

  • The treatment protocol involves performing 3-4 microneedling sessions spaced 2-3 weeks apart, with needle depths between 0.5-2.0 mm depending on facial area and skin thickness 1, 2, 3, 4
  • Topical compounded anesthesia should be applied for at least 30 minutes prior to the procedure, and complete removal of anesthetic is necessary before beginning treatment 4
  • Directional passes across treatment areas with an automated microneedling device should be used, ensuring skin remains well-lubricated throughout the procedure 3, 4

Adjunctive Topical Agents

  • The American Society for Dermatologic Surgery suggests combining microneedling with either topical tranexamic acid or platelet-rich plasma (PRP) for enhanced efficacy 1, 2
  • PRP demonstrates superior efficacy compared to tranexamic acid injections, and should be applied liberally to keep skin well-lubricated during the procedure 1, 2, 4, 5

Maintenance and Photoprotection

  • The American Academy of Dermatology recommends scheduling maintenance treatments every 6 months indefinitely, as melasma is a chronic condition with high recurrence rates requiring ongoing management 1, 2, 5
  • Broad-spectrum sunscreen SPF 50+ should be applied daily, with reapplication every 2-3 hours during outdoor exposure, and patients should wear wide-brimmed hats and seek shade during peak UV hours 1, 2

Measuring Treatment Success

  • The Melasma Area and Severity Index (MASI) scores should be used to measure treatment success, with decreases in MASI >60-90% indicating moderate improvement and decreases >90% indicating excellent response 1, 2

Critical Pitfalls to Avoid

  • Applying topical agents after microneedling instead of before, discontinuing treatment after initial improvement, inadequate sun protection, using over-the-counter topical anesthesia, and forgetting to remove anesthetic completely should be avoided 1, 2, 4, 5

Patient Counseling

  • Patients should be advised to avoid sunlight and heavily scented facial creams/products for 24 hours post-procedure, and counseled to avoid smoking, as it negatively impacts treatment outcomes 2, 4
  • Patients should be set realistic expectations that this is a chronic condition requiring ongoing management 1, 2

REFERENCES

1

Treatment Options for Melasma [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

2

Melasma Treatment Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025