Hyperpigmentation: Causes and Treatments That Fade Dark Spots

Hyperpigmentation simply means patches of skin that are darker than the skin around them. It happens when skin cells make extra melanin, the pigment that gives skin its color, in response to sun, hormones, inflammation or injury. It is harmless in itself, but dark spots and uneven tone are one of the most common reasons people see a dermatology provider, and they can be stubborn.

The key to fading it is knowing which type you have, because sun spots, melasma and post-acne marks respond to different treatments. This guide covers the main types, their causes, what works at home, in-office treatments and how to keep spots from coming back.

Types of hyperpigmentation

Type	What it looks like	Main cause
Sun spots (age or liver spots)	Flat, well-defined tan to brown spots on the face, hands, arms and chest	Years of sun exposure
Melasma	Larger, blotchy brown or gray-brown patches, often matching on both cheeks, the forehead or upper lip	Hormones (pregnancy, birth control), sun, heat and visible light
Post-inflammatory hyperpigmentation	Dark spots where a pimple, rash, burn, cut or procedure has healed	Inflammation or injury; more common on medium to deep skin
Freckles	Small, light brown dots that darken in summer	Genetics plus sun
Other causes	Darkening from some medicines, or around the neck and body folds	Medicines, insulin resistance and other medical conditions

A provider should check any dark spot that is new, changing, uneven in color or shape, or bleeding, since some skin cancers can look like a sun spot. See our guide to early signs of melanoma. Sudden widespread darkening also needs a medical check.

What makes dark spots worse

• Sun and visible light: even a few minutes of unprotected sun can darken spots, and visible light from the sun worsens melasma.
• Heat: saunas, hot yoga and heat from some devices can flare melasma.
• Picking and irritation: picking pimples, scrubbing and harsh products cause more inflammation and new spots.
• Hormones: pregnancy, birth control and hormone therapy can trigger melasma.
• Imported “lightening” creams: the American Academy of Dermatology warns some contain hidden steroids or mercury.

Treating hyperpigmentation at home

1. Daily sunscreen: broad-spectrum SPF 30 or higher, ideally a tinted formula with iron oxides, which also blocks visible light. Reapply every two hours outdoors and wear a hat. Without this, nothing else works for long.
2. Find and stop the trigger: treat acne or eczema, stop picking, and talk to your doctor about any medicine you think is the cause before stopping it.
3. Use proven fading ingredients: retinoids, azelaic acid, vitamin C, glycolic acid, kojic acid and niacinamide can fade spots and slow pigment production. See our guides to retinol and vitamin C.
4. Be gentle: fragrance-free products and no scrubs; stop anything that stings or burns.
5. Be patient: light spots usually fade over 6 to 12 months once the cause is removed; deeper, gray-blue pigment can take years.

Prescription and in-office treatments

Which treatment for which spots?

• Sun spotsUsually respond best to light and laser treatments such as BBL HERO or HALO, or freezing for a few isolated spots. See age spot removal.
• MelasmaStarts with strict sun protection and prescription creams, then gentle peels such as Cosmelan or MOXI. Heat-based lasers and strong light can make melasma worse, so they are used with care. See melasma treatment and our guide to lasers for melasma.
• Post-acne and other dark marksTreat the acne, then fade marks with retinoids, azelaic acid, peels or MOXI. Read how to get rid of acne scars.

Hyperpigmentation on darker skin

Medium to deep skin tones are more prone to hyperpigmentation, especially dark marks after acne, and to new dark patches from treatments that are too strong. Gentle, gradual approaches work best: prescription creams, superficial peels and lasers chosen for your skin type, with a few weeks of pigment-lowering cream beforehand. BBL and other light treatments are generally avoided on darker skin. Our Fitzpatrick skin type guide explains why.

Cost at Glow Theory

Consultations are $100 and include a VISIA skin analysis, which shows hidden sun damage and pigment. Members save 15% on peels and lasers.

Hyperpigmentation treatment in Carlsbad

Our team diagnoses the type of pigment with a skin exam and VISIA imaging, checks any spot that needs a closer look, and builds a plan from prescription skincare, peels and lasers. See our chemical peels, BBL HERO and MOXI pages, or book a consultation at our South Carlsbad studio on El Camino Real.