Melasma & Dark Spots
Melasma and dark spots are stubborn, and most "brightening" products overpromise. The evidence-based approach is a small set of depigmenting actives plus relentless sun protection — because without daily SPF, pigment comes right back. Here is what works, tiered, and how to combine it.
Last reviewed Jun 24, 2026 · Evidence-based — every ingredient links to its underlying studies.
- Wear broad-spectrum SPF every day — the single biggest factor
- Use a depigmenter (start with azelaic or tranexamic; hydroquinone under a clinician)
- Give it 8–12+ weeks and stay consistent
- Skipping sunscreen — it undoes every active
- Using hydroquinone continuously long-term (ochronosis risk)
- Aggressive scrubs/peels that inflame and worsen pigment
Key point: Sun protection does more for pigmentation than any brightening active — UV is the main driver, and pigment rebounds without it.
Sunscreen is the spine of the whole plan
UV (and visible light) drive melasma. No depigmenter works without daily broad-spectrum SPF — and a tinted mineral sunscreen adds visible-light protection that helps melasma specifically. If you only do one thing, do this.
What works, by evidence
- 7Hydroquinone— Gold-standard depigmenter; prescription, time-limited (ochronosis risk)
- 8Tretinoin— Boosts depigmenters; part of the classic triple-combination cream
- 7.5Azelaic acid— Gentle, effective, pregnancy-friendly — a great first choice
- 6Tranexamic acid— Topical or oral (clinician); strong for melasma
- 6Cysteamine— Non-hydroquinone depigmenter; odor is the catch
- 6Vitamin C— Antioxidant brightener; best as a daytime adjunct
- 6Niacinamide— Blocks pigment transfer; gentle multitasker
- 6Kojic acid— Tyrosinase inhibitor; scores on par with these, strongest in combination
- 4Alpha arbutin— Gentle; thin standalone evidence
- 4Licorice / glabridin— Gentle, soothing; weak evidence
Evidence at a glance
Depigmenting actives ranked by their own evidence score (0–10).
Combining them
Sunscreen is mandatory.
UV drives the pigment; without SPF, gains reverse and melasma rebounds.
A proven pairing (the Kligman trio).
A retinoid potentiates hydroquinone — the classic triple-combination adds a mild steroid under a clinician.
Keep them apart.
Together they can oxidise and temporarily stain skin a brown/orange tint.
Alternate, don’t pile on.
Stacking acids with active treatment irritates and can worsen post-inflammatory pigment.
When to see a dermatologist
Melasma is chronic and relapsing — if it’s widespread, not budging after a few months, or you’re considering hydroquinone, the triple-combination cream, oral tranexamic acid, or procedures (peels, lasers), see a dermatologist. Lasers in particular can backfire on melasma if done wrong.
Sources & further reading
The curated, PubMed-verified studies behind each depigmenter live on its page.
Common questions
Does hydroquinone really work?
Yes — it’s the most effective topical depigmenter and the benchmark others are measured against. But it’s prescription-only in the US now, should be used in time-limited courses (not indefinitely), and needs daily sunscreen alongside it.
Is vitamin C enough on its own?
Usually not for true melasma — it’s a helpful daytime antioxidant/brightener but modest alone. Pair it with a dedicated depigmenter (azelaic, tranexamic, or hydroquinone) and sunscreen.
How long until I see results?
Give it 8–12 weeks of consistent use before judging, and longer for melasma. Pigmentation fades slowly; patience plus sun protection is the whole game.
Will it come back?
Melasma is prone to relapse, especially with sun exposure or hormonal triggers. Ongoing daily sunscreen (and often a maintenance active) is what keeps it away.
Educational guidance, not medical advice. Evidence and safety details for each option live on its individual page; see a clinician for prescription treatments or persistent problems.
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