If you've ever cleared a breakout only to be left with a dark patch where it used to be, you've experienced post-inflammatory hyperpigmentation — PIH for short. It's one of the most common skin concerns for people with melanin-rich skin, and it's largely misunderstood.
The mark isn't scarring. It's your skin overproducing melanin as part of the healing response. The good news is it fades. The bad news is it takes patience — and the wrong products can make it significantly worse.
Ingredients that are actually proven to work
Niacinamide is your most reliable starting point. It's well-tolerated by almost all skin types, reduces melanin transfer to the skin's surface, and has solid clinical backing. A 5–10% concentration used consistently over 8–12 weeks produces visible results for most people.
Alpha arbutin works similarly, blocking the enzyme responsible for melanin production. It's gentler than hydroquinone and suitable for long-term use. Vitamin C — specifically L-ascorbic acid — is effective but unstable; if your serum has turned orange or brown, it's oxidised and no longer doing its job.
Azelaic acid is the underrated option. It targets melanin-producing cells directly, doubles as an acne treatment, and is safe enough to use during pregnancy. If you've been sleeping on it, don't.
What to be careful about
Hydroquinone is effective at reducing dark spots but should only be used short-term — typically no longer than three months at a time — and only under pharmacist or doctor guidance. Many products sold in Lagos markets contain unlabelled hydroquinone, often at unsafe concentrations, combined with steroids that thin the skin over time. The rebound hyperpigmentation from stopping these products can be worse than the original concern.
Whatever you use, sunscreen is non-negotiable. UV exposure is the single biggest trigger for hyperpigmentation. Without SPF, even the best treatment serum is working against itself every time you step outside. In Lagos — with a UV index that regularly hits extreme levels — this isn't optional.
Consistency over two to three months will outperform any expensive "miracle" product used for two weeks. Pick two or three proven ingredients, protect your skin from the sun, and give it time.
