Discoloration Correcting Serum
Good Molecules / 1 oz / $10.77
Pairs two ingredients with tone data for an affordable daily serum. The tranexamic acid piece is the less-proven half.
Buy on Amazon (opens in new tab)Concern
Dark spots & melasma
Dark spots come from sun, old breakouts, or hormones, and melasma is a hormone-and-sun related patchy discoloration. A dermatologist can confirm what you have and offer stronger options like prescription hydroquinone or tretinoin.
Actives that work
Azelaic acid
strong evidence Typical: 10-20%
Blocks the pigment enzyme in overactive cells while calming inflammation. In 329 women it performed about as well as 4% hydroquinone for melasma.
Niacinamide
moderate evidence Typical: 4-5%
Stops pigment from moving into surface skin cells. A split-face trial found 4% niacinamide improved melasma similarly to 4% hydroquinone with fewer side effects.
Tranexamic acid
emerging evidence Typical: 3-5%
Interrupts signaling between skin cells that triggers pigment. Reviews say results are promising but efficacy isn't firmly established, especially topically.
Tinted sunscreen with iron oxide
moderate evidence Typical: SPF 50 with iron oxides
Visible light can darken pigment in medium-to-deep tones. Iron-oxide sunscreen plus hydroquinone beat UV-only sunscreen in a trial of 68 people.
What to buy
Cheapest first. Start with the budget pick.
Tranexamic Topical Acid 5%
Naturium / 1 oz / $17.99
A 5% tranexamic acid serum for lingering spots. Treat it as an experimental add-on, since topical evidence is limited.
Buy on Amazon (opens in new tab)Azelaic Acid Suspension 10%
The Ordinary / 1 fl oz / ~$12
A 10% azelaic suspension, lower than the 15-20% used in trials. A reasonable starting point, but expect slower results.
Buy on Amazon (opens in new tab)Alpha Arbutin 2% + HA
The Ordinary / 1 fl oz / $10.92
A 2% alpha-arbutin with hyaluronic acid for mild spots. No strong direct trials of alpha-arbutin were found, so treat it as emerging.
Buy on Amazon (opens in new tab)10% Azelaic Acid Booster
Paula's Choice / 1 fl oz / $37.80
A 10% azelaic booster that also includes salicylic acid. More polished texture than the budget suspension but the same active strength.
Buy on Amazon (opens in new tab)Sunforgettable / Face Shield Flex SPF 50 (tinted)
Colorescience / 1.8 fl oz / $58
A tinted mineral SPF 50 with iron oxides. Protects against the visible light that keeps pigment dark.
Buy on Amazon (opens in new tab)Routine
Morning
- Gentle cleanser
- Vitamin C or niacinamide
- Tinted mineral SPF 50, reapplied
Evening
- Cleanser
- Azelaic acid or tranexamic acid
- Moisturizer
Expect 8-12 weeks at least; stopping sunscreen restarts the pigment.
Cautions. Hydroquinone can cause ochronosis if overused; use only as directed by a clinician. Pregnancy: avoid hydroquinone and retinoids without medical advice, and patch test first.
This is general information, not medical advice. See a dermatologist for persistent or severe concerns.