Comparing Three Pigmentation Conditions
Melasma: Brown to grayish-brown patches appear symmetrically on the face. UV exposure plus hormones (pregnancy, birth control, thyroid) are the main causes. Most difficult to manage and prone to recurrence.
Freckles: Small, round brown spots that develop from genetic predisposition plus UV exposure. They darken in summer and fade in winter — a seasonal characteristic. They tend to fade naturally after your 20s.
Dark spots/PIH: Various types including post-acne brown marks (PIH) and UV-damage spots. Most fade naturally within 3–12 months.
Common Management Principle
For all three, sun protection accounts for 50% of treatment. Apply SPF 50+ PA++++ sunscreen and reapply every 2–3 hours.
Ingredients for Each Type
Melasma: Tranexamic acid, niacinamide, and azelaic acid are effective. Combining oral tranexamic acid with laser toning at a dermatology clinic gives the best results.
Freckles: Vitamin C serum inhibits melanin oxidation. IPL and picosecond laser treatments offer faster improvement.
PIH: A combination of niacinamide, vitamin C, retinol, and AHA effectively breaks down pigment and accelerates cell turnover.
Brightening Takes at Least 3 Months
Expecting dramatic results in a short time is unrealistic. Consistently pairing sun protection with brightening ingredients is the most reliable method.