What should you know about glycolic b5 dark spot corrector?

Glycolic acid is an alpha-hydroxy acid that loosens bonds between surface cells, helping texture look smoother. Vitamin B5 can support a comfortable formulation, but the product cannot identify why pigment developed or prevent every recurrence. Irritation from an acid can itself deepen discoloration in some skin tones.

Dark patches may reflect [Melasma](/conditions/melasma/), [Post-Inflammatory Hyperpigmentation](/conditions/post-inflammatory-hyperpigmentation/), [Sun Spots](/conditions/sun-spots/) or [Tinea Versicolor](/conditions/tinea-versicolor/). The [Dark Patches On Skin](/symptoms/dark-patches-on-skin/) overview can help frame what you are seeing.

Apply the product exactly as its label directs, beginning cautiously if your skin is sensitive. Use it on intact skin, avoid the eyelids, lips and broken areas, and do not layer it at first with other exfoliating acids, retinoids or irritating treatments. Moisturise after use and wear broad-spectrum sunscreen during daytime exposure.

Stop if you develop persistent burning, swelling, marked redness or worsening darkening. A clinician can decide whether [Skin Brightening Treatment](/treatments/aesthetic-procedures/skin-brightening-treatment/), [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/) or [Picosecond Laser Treatment](/treatments/laser-and-energy/picosecond-laser-treatment/) is appropriate.

Arrange assessment for a new or changing patch, irregular colour or border, bleeding, crusting, pain, persistent itch, or pigment that keeps spreading. Seek urgent care for facial swelling, breathing difficulty or blistering after applying the product.

What is the likely cause of my dark patch? Is glycolic acid suitable for my skin tone and current products? How should I protect the area from light, and when should I consider a supervised treatment?