COSRX for Dark Spots: What to Know

Dark spots are areas of increased colour that can follow inflammation, sun exposure, hormonal influences, or certain infections. [Melasma](/conditions/melasma/) often appears as patchy facial pigmentation, while [Post-Inflammatory Hyperpigmentation](/conditions/post-inflammatory-hyperpigmentation/) can follow acne, eczema, or injury. [Sun Spots](/conditions/sun-spots/) and [Tinea Versicolor](/conditions/tinea-versicolor/) need different approaches. A product may improve the appearance of one cause while doing little for another.

COSRX is a brand with different cleansers, essences, serums, and moisturisers, so the ingredient list matters more than the brand name. Acids and other active ingredients can irritate skin, and irritation may leave darker marks in some skin tones. A changing, bleeding, crusted, or very different spot should be assessed rather than treated only as pigmentation.

Start with a gentle routine and introduce one active product at a time. Follow the label, avoid applying it to broken skin, and stop if you develop persistent burning, swelling, or a rash. Daily broad-spectrum sun protection helps limit further darkening, while picking or scrubbing can prolong marks. If spots continue, a clinician can identify the cause and discuss options such as [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/), [Skin Brightening Treatment](/treatments/aesthetic-procedures/skin-brightening-treatment/), or [Picosecond Laser Treatment](/treatments/laser-and-energy/picosecond-laser-treatment/). Ask about suitability for your skin tone and the risk of irritation before combining treatments.

Book a medical review for a new or changing patch, a spot with an irregular border or mixed colour, bleeding, crusting, persistent itching, or a sore that does not heal. Seek advice sooner if pigmentation is widespread, rapidly appearing, or accompanied by scaling or inflammation. Take the product packaging and a clear timeline of changes to the appointment.

What is the likely cause of my dark spots? Which COSRX ingredients are appropriate for my skin? Should I avoid acids or combine products? How will we monitor irritation or changes in the spots?