Some melasma responds to topical hydroquinone + sunscreen. "Resistant" melasma — typically deeper dermal melasma, common in Latin and Asian skin — doesn't. Resistant cases need a layered approach including oral tranexamic acid, ultra-low-fluence picosecond, and aggressive sun protection.
Why standard treatment fails
Topical hydroquinone treats epidermal melanin. Dermal-component melasma sits below the epidermis, where topicals don't reach effectively. Aggressive lasers backfire — the heat triggers more melanin production.
Resistant melasma often has both epidermal and dermal components. Single-modality approaches address only one layer.
Oral tranexamic acid
Off-label use for melasma (medication originally for bleeding). 250–500 mg twice daily over 3–6 months. Many studies show meaningful improvement in resistant cases. Requires medical supervision and contraindications screening.
Mechanism: inhibits melanocyte plasminogen activation. Works systemically; addresses dermal component.
Ultra-low-fluence picosecond toning
Multiple-pass picosecond at sub-clinical fluence. Doesn't trigger melanocyte activation. 6–10 sessions, 4 weeks apart. Elyzea melasma picosecond: S/300 (~US$86).
Critical: must be ultra-low-fluence. Higher fluences flare melasma significantly.
Strict topical regimen
Hydroquinone 4 % cycling + tretinoin + niacinamide + tranexamic acid topical + tinted mineral SPF 50+ daily.
Topical tranexamic acid (3% concentration) provides additional benefit alongside oral.
Hormonal trigger management
Many melasma cases are estrogen-driven. Switching to non-estrogen contraception, post-pregnancy timing, and managing thyroid levels can be more impactful than any laser.
Discuss with PCP or gynecologist alongside aesthetic treatment.
What to avoid
Aggressive resurfacing, IPL, Q-switched lasers at standard fluences, citrus topical exfoliants. All can flare resistant melasma significantly. Standard melasma guide.
Realistic expectations
Resistant melasma management is a 6-12+ month process. 60-80% improvement realistic; 100% clearance rare. Lifelong management is the expected pattern.
Even apparent clearance can recur with sun exposure or hormonal events.
Trip planning for resistant melasma
Multi-trip strategy over 6-12 months:
- Trip 1: Initial assessment, picosecond session 1, topical regimen start
- Trips 2-6: Picosecond sessions 2-6 spaced 4 weeks apart
- Maintenance trips: annual or as flares occur
Frequently asked questions
Is oral tranexamic acid safe?
Generally safe with medical supervision. Rare side effect: clotting risk in predisposed patients.
What's the difference between epidermal and dermal melasma?
Wood's lamp examination differentiates. Dermal harder to treat.
Can I prevent flares?
Strict sun avoidance + topicals + avoiding heat/hormonal triggers reduces flare frequency.
What about pregnancy melasma?
Often resolves post-pregnancy. Treat post-breastfeeding.
How does this compare to chloasma?
Chloasma is the older term for the same condition.
Will my husband / partner notice?
Severity varies. Many partners are supportive of treatment efforts.
What about new treatments coming?
Continued research in melanocyte-targeted topicals and devices.
Why Elyzea is different in Lima
Beyond the device, what changes outcomes is the clinical setup: an MD anesthesiologist on-site when protocols require it, a private recovery room, and a surgeon-led treatment plan. Plan your visit.
What the free virtual consultation covers
Before any travel, a free virtual consultation reviews your goals, candidacy and exact pricing — so you fly with a confirmed plan, not a sales pitch. Book it and plan your visit here.
Transparent pricing — no surprises
Every treatment Elyzea offers is published on our public price list (prices.md in the website repository, mirrored on the price pages). The free virtual consultation determines protocol, sessions, and any combination plan; the per-session prices on the public list are what you pay. There are no opaque "personalized quotes" that scale to perceived ability to pay, no pressure-package upsells, and no surprise invoice items at checkout.
Anesthesia tier (topical, nerve block, oral sedation, or conscious IV sedation) is matched to the protocol depth and discussed transparently at consultation. When a treatment is part of a multi-modality plan (HIFU + Morpheus8, fillers + CO₂, etc.), the full cost is mapped out before any commitment. Lima pricing reflects local cost structure — significantly below US clinics for the same FDA-cleared technology — and the public price list ensures the savings actually reach the patient.
Related condition
Resistant cases sit at the difficult end of the broader melasma treatment in Lima, Peru spectrum — see that page for the standard protocol and how it differs.
Bottom line
Resistant melasma = oral tranexamic + ultra-low-fluence picosecond + strict topical + hormonal management. 60-80% improvement realistic over 6-12 months. Lifelong maintenance pattern. Lima makes ongoing treatment more economically accessible.