How to reduce hyperpigmentation

What kind of pigmentation are you treating?

Hyperpigmentation means areas of skin have become darker than the surrounding skin, often because of extra melanin, the pigment that gives skin its colour. It affects all skin tones. The cause matters more than the word on a serum bottle: marks after inflammation, sun spots and melasma do not all follow the same treatment plan.3

• Marks after acne, eczema or an injury are called post inflammatory hyperpigmentation. Treating the inflammation helps stop new marks.
• Sun spots, also called solar lentigines, develop from sun damage.
• Melasma usually forms blotchy brown patches on both sides of the face. Sunlight, visible light and hormonal changes can contribute.
• Not every dark patch is excess melanin. Other skin conditions and pigmented lesions can look similar, so an uncertain diagnosis needs an examination rather than another brightening product.

Start with the cause and daily sun protection

1. 1Address the trigger. Control ongoing acne or eczema, avoid injuring the area again and replace irritating skincare with gentler products.
2. 2Apply sunscreen every day. Use broad spectrum protection, which covers UVA and UVB rays. SPF 30 is the minimum; SPF 50 or higher is a useful choice for exposed pigmentation.
3. 3For melasma or dark marks in darker skin tones, choose a tinted sunscreen containing iron oxides. These add protection against visible light, which can worsen pigmentation.
4. 4Apply sunscreen before going outside to skin clothing does not cover. Reapply every two hours outdoors and after swimming or sweating.
5. 5Add shade and a wide brimmed hat. Avoid picking pimples, which can create more injury and pigmentation.

Sunscreen helps prevent light from worsening melasma and post inflammatory marks and supports other treatments. Sunscreen belongs in a pigment routine, even if a bottle called "brightening" sounds more qualified. Look for iron oxides in the ingredient list; on US sunscreen labels, they appear among inactive ingredients because their role is visible light protection rather than UV protection. Choose a water resistant sunscreen and a tint that blends with your skin.26

Which ingredients can fade dark spots?

Creams and other treatments applied to the skin are generally the first treatment step alongside sun protection. Choose by the type of pigmentation and how well your skin tolerates treatment. Irritation is particularly unhelpful in darker skin because inflammation can leave additional pigment.1

When does prescription treatment make sense?

For melasma, a dermatologist can prescribe hydroquinone or a combination of hydroquinone, tretinoin and a corticosteroid. The combination targets pigment while also reducing inflammation. In the US, hydroquinone is no longer available without a prescription. Azelaic acid, kojic acid or vitamin C can be gentler alternatives within a treatment plan. The choice depends on skin tone, pigment depth and triggers, not simply which ingredient sounds strongest.7

For a prescribed melasma routine, apply the melasma medication first, sunscreen second and camouflage makeup last. Makeup can hide patches while treatment takes effect, without having to pretend it is also a cure. Use medication on the schedule your dermatologist sets rather than borrowing another person's routine.7

What if pregnancy or medication is involved?

Pregnancy can trigger melasma, and patches sometimes fade after delivery. Hydroquinone is not recommended during pregnancy because substantial absorption raises concerns about effects on the fetus. Sun protection is a safer starting point. Discuss pigment medication with your clinician during pregnancy. If a prescription seems to be causing darkening, do not stop taking it yourself; ask the prescriber whether pigmentation is a side effect and whether an alternative is appropriate.267

How long does fading take?

Expect months rather than days. Melasma treatment usually takes 3 to 12 months to show results, and longstanding melasma can take longer. Pigment in the outer skin layer generally responds better than pigment deeper in the skin. Deep post inflammatory pigment can look blue or grey and persist for years. These deeper marks are a reason to seek a tailored treatment plan rather than keep increasing exfoliation.157

Photographs can help track melasma treatment, giving progress something more dependable than a bathroom mirror with opinions. Even after successful treatment, melasma can return with summer sun exposure. Continue sun protection throughout the year; a cleared patch does not mean the tendency to develop pigment has disappeared.5

Are peels and lasers worth considering?

Chemical peels, lasers and light treatments can help selected cases, but they are not automatic upgrades from creams. Resurfacing can damage the outer skin layer and create more pigment. Darker skin needs particular caution. For melasma, procedures also carry a risk of relapse or making the condition harder to treat. A dermatologist experienced in pigmentation should select and perform these treatments. Freezing small areas can cause permanent loss of pigment.45

What should you stop for, and when should you get help?

Stop a skincare product that burns or stings. Never apply household liquid bleach to dark spots. Avoid unverified lightening creams: some have contained undeclared mercury or steroids. See a healthcare professional if a dark area is painful, itchy, hot, red or leaking blood or pus. Ordinary hyperpigmentation does not cause these symptoms. Get an assessment if the cause is unclear or treatment is not helping; examination can distinguish pigment problems from other skin conditions and guide the next treatment.237